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120-887: Captain Robert Falcon Scott , leader of the British National Antarctic Expedition (1901-1904), discovered the Drygalski Ice Tongue in January 1902 and named it for Professor Erich von Drygalski , a contemporary German explorer then in Antarctica. The glacier that feeds the ice tongue was named after Edgeworth David . David and Douglas Mawson crossed the ice tongue in 1908/09 as part of the Nimrod Expedition . The Terra Nova Northern Party expedition did

240-490: A 3,000 square kilometres (1,200 sq mi) iceberg designated B-15A hit the ice tongue breaking off two chunks, each with a surface area of about 70 square kilometres (27 sq mi). This iceberg is a remnant of Iceberg B-15, which calved from the Ross Ice Shelf in 2000. Scientists are also concerned for several penguin colonies which have been isolated from the open sea by the two large bodies of ice. At

360-494: A bid for the South Pole from there. Scott claimed, in the first of a series of letters to Shackleton, that the area around McMurdo was his own "field of work" to which he had prior rights until he chose to give them up, and that Shackleton should therefore work from an entirely different area. In this, he was strongly supported by Discovery ' s former zoologist, Edward Wilson , who asserted that Scott's rights extended to

480-525: A caravan of mixed transport groups (motors, dogs, horses), with loaded sledges, travelling at different rates, all designed to support a final group of four men who would make a dash for the Pole. The southbound party steadily reduced in size as successive support teams turned back. Scott reminded the returning Surgeon-Lieutenant Atkinson of the order "to take the two dog-teams south in the event of Meares having to return home, as seemed likely". By 4 January 1912,

600-578: A chance encounter with Sir Clements Markham , the president of the Royal Geographical Society , and learned of a planned Antarctic expedition, which he soon volunteered to lead. His name became inseparably associated with the Antarctic, the field of work to which he remained committed during the final 12 years of his life. Following the news of his death, Scott became a celebrated hero, a status reflected by memorials erected across

720-621: A chest measurement of 39¼ inches." In July 1883, Scott passed out of Britannia as a midshipman, seventh overall in a class of 26. By October, he was en route to South Africa to join HMS ; Boadicea , the flagship of the Cape squadron, the first of several ships on which he served during his midshipman years. While stationed in St Kitts , West Indies , on HMS  Rover , he had his first encounter with Clements Markham , then Secretary of

840-561: A collision involving Scott's ship, HMS  Albemarle . Scott was cleared of blame. HMS  Albemarle , a battleship commanded by Scott, collided with the battleship HMS  Commonwealth on 11 February 1907, suffering minor bow damage. By early 1906, Scott queried the RGS about the possible funding of a future Antarctic expedition. It was therefore unwelcome news to him that Ernest Shackleton had announced his own plans to travel to Discovery ' s old McMurdo Sound base and launch

960-472: A constant rate. These " molecular clocks ", however, are fallible, and provide only approximate timing: for example, they are not sufficiently precise and reliable for estimating when the groups that feature in the Cambrian explosion first evolved, and estimates produced by different techniques may vary by a factor of two. Organisms are only rarely preserved as fossils in the best of circumstances, and only

1080-417: A farewell letter to Sir Edgar Speyer , dated 16 March, Scott wondered whether he had overshot the meeting point and fought the growing suspicion that he had in fact been abandoned by the dog teams: "We very nearly came through, and it's a pity to have missed it, but lately I have felt that we have overshot our mark. No-one is to blame and I hope no attempt will be made to suggest that we had lacked support." On

1200-419: A fierce blizzard prevented their making any progress. During the next nine days, as their supplies ran out, and with storms still raging outside the tent, Scott and his companions wrote their farewell letters. Scott gave up his diary after 23 March, save for a final entry on 29 March, with its concluding words: "Last entry. For God's sake look after our people". He left letters to Wilson's mother, Bowers' mother,

1320-426: A fraction of such fossils have been discovered. This is illustrated by the fact that the number of species known through the fossil record is less than 5% of the number of known living species, suggesting that the number of species known through fossils must be far less than 1% of all the species that have ever lived. Because of the specialized and rare circumstances required for a biological structure to fossilize, only

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1440-499: A hierarchical classification system still in use today. Darwin and his contemporaries first linked the hierarchical structure of the tree of life with the then very sparse fossil record. Darwin eloquently described a process of descent with modification, or evolution, whereby organisms either adapt to natural and changing environmental pressures, or they perish. When Darwin wrote On the Origin of Species by Means of Natural Selection, or

1560-527: A large contingent of dogs in the Bay of Whales , 200 miles (320 km) to their east. Scott conceded that his ponies would not be able to start early enough in the season to compete with Amundsen's cold-tolerant dog teams for the pole and also acknowledged that the Norwegian's base was closer to the pole by 69 miles (111 km). Wilson was more hopeful, whereas Gran shared Scott's concern. Shortly afterwards,

1680-496: A late-season arrival and less time for preparatory work before the Antarctic winter. At Cape Evans, Antarctica, one of the motor sledges was lost during its unloading from the ship, breaking through the sea ice and sinking. Deteriorating weather conditions and weak, unacclimatised, ponies affected the initial depot-laying journey, so that the expedition's main supply point, One Ton Depot, was laid 35 miles (56 km) north of its planned location at 80°S. Lawrence Oates , in charge of

1800-418: A mid-Ordovician age. Such index fossils must be distinctive, be globally distributed and occupy a short time range to be useful. Misleading results are produced if the index fossils are incorrectly dated. Stratigraphy and biostratigraphy can in general provide only relative dating ( A was before B ), which is often sufficient for studying evolution. However, this is difficult for some time periods, because of

1920-536: A mutation first appeared. Phylogenetics and paleontology work together in the clarification of science's still dim view of the appearance of life and its evolution. Niles Eldredge 's study of the Phacops trilobite genus supported the hypothesis that modifications to the arrangement of the trilobite's eye lenses proceeded by fits and starts over millions of years during the Devonian . Eldredge's interpretation of

2040-399: A pity, but I do not think I can write more. R. SCOTT. For God’s sake look after our people. The bodies of Scott and his companions were discovered by a search party on 12 November 1912. Tryggve Gran , who was part of the search party, described the scene as, "snowcovered til up above the door, with Scott in the middle, half out of his bagg [ sic ] ... the frost had made

2160-570: A portion of the deceased organism, usually that portion that was partially mineralized during life, such as the bones and teeth of vertebrates , or the chitinous or calcareous exoskeletons of invertebrates . Fossils may also consist of the marks left behind by the organism while it was alive, such as animal tracks or feces ( coprolites ). These types of fossil are called trace fossils or ichnofossils , as opposed to body fossils . Some fossils are biochemical and are called chemofossils or biosignatures . Gathering fossils dates at least to

2280-420: A precipice on 11 March 1902. The expedition also experienced problems with scurvy , which affected Scott's domestic reputation. The expedition had both scientific and exploration objectives; the latter included a long journey south, in the direction of the South Pole. This march, undertaken by Scott, Ernest Shackleton and Edward Wilson , took them to a latitude of 82°17′S, about 530 miles (850 km) from

2400-508: A private luncheon party. She was a sculptor, socialite and cosmopolitan who had studied under Auguste Rodin and whose circle included Isadora Duncan , Pablo Picasso and Aleister Crowley . Her initial meeting with Scott was brief, but when they met again later that year, the mutual attraction was obvious. A stormy courtship followed; Scott was not her only suitor—his main rival was would-be novelist Gilbert Cannan —and his absences at sea did not assist his cause. However, Scott's persistence

2520-400: A richly diverse assembly of early multicellular eukaryotes . The fossil record and faunal succession form the basis of the science of biostratigraphy or determining the age of rocks based on embedded fossils. For the first 150 years of geology , biostratigraphy and superposition were the only means for determining the relative age of rocks. The geologic time scale was developed based on

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2640-448: A small percentage of life-forms can be expected to be represented in discoveries, and each discovery represents only a snapshot of the process of evolution. The transition itself can only be illustrated and corroborated by transitional fossils, which will never demonstrate an exact half-way point. The fossil record is strongly biased toward organisms with hard-parts, leaving most groups of soft-bodied organisms with little to no role. It

2760-532: A string of notables including his former commander, Sir George Egerton , his own mother and his wife. He also wrote his "Message to the Public", primarily a vindication of the expedition's organisation and conduct in which the party's failure is attributed to weather and other misfortunes, but ending on an inspirational note, with these words: We took risks, we knew we took them; things have come out against us, and therefore we have no cause for complaint, but bow to

2880-499: A telegram from Amundsen stating: "Beg leave to inform you Fram proceeding Antarctic Amundsen," possibly indicating that Scott faced a race to the pole. The expedition suffered a series of early misfortunes which hampered the first season's work and impaired preparations for the main polar march. On its journey from New Zealand to the Antarctic, Terra Nova nearly sank in a storm and was then trapped in pack ice for 20 days, far longer than other ships had experienced, which meant

3000-438: Is a critical position. We may find ourselves in safety at the next depot, but there is a horrid element of doubt." On 2 March, Oates began to suffer from the effects of frostbite and the party's progress slowed as he was increasingly unable to assist in the workload, eventually only able to drag himself alongside the men pulling the sledge. By 10 March the temperature had dropped unexpectedly to below −40 °C (−40 °F). In

3120-449: Is a notable example of how knowledge encoded by the fossil record continues to contribute otherwise unattainable information on the emergence and development of life on Earth. For example, the research suggests Markuelia has closest affinity to priapulid worms, and is adjacent to the evolutionary branching of Priapulida , Nematoda and Arthropoda . Despite significant advances in uncovering and identifying paleontological specimens, it

3240-646: Is an accepted version of this page Captain Robert Falcon Scott CVO (6 June 1868 – c. 29 March 1912) was a British Royal Navy officer and explorer who led two expeditions to the Antarctic regions: the Discovery expedition of 1901–04 and the Terra Nova expedition of 1910–13. On the first expedition, he set a new southern record by marching to latitude 82°S and discovered

3360-479: Is generally accepted that the fossil record is vastly incomplete. Approaches for measuring the completeness of the fossil record have been developed for numerous subsets of species, including those grouped taxonomically, temporally, environmentally/geographically, or in sum. This encompasses the subfield of taphonomy and the study of biases in the paleontological record. Paleontology seeks to map out how life evolved across geologic time. A substantial hurdle

3480-529: Is in places only 300 m thick, with between 300 and 900 m (980 and 2,950 ft) of ocean beneath. The floating glacier also forms the southern bound of the Nansen Ice Shelf . This small ice shelf is subject to strong katabatic winds . It is also possible to observe free-flowing meltwater on its surface in summer conditions. In 2016 a 30 km (19 mi) long section of the ice shelf calved to form two large icebergs. On March–April 2005,

3600-399: Is indicated in his diary: "The worst has happened [...] All the day dreams must go [...] Great God! This is an awful place". The deflated party began the 862 miles (1,387 km) return journey on 19 January. "I'm afraid the return journey is going to be dreadfully tiring and monotonous", wrote Scott on that day. The party made good progress despite poor weather, and had completed

3720-657: Is known as the fossil record . Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of Tiktaalik in the arctic of Canada . Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. The observation in

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3840-415: Is presumed to have died on 29 March 1912, or possibly one day later. The positions of the bodies in the tent when it was discovered eight months later suggested that Scott was the last of the three to die. In his final journal entry he wrote: I do not think we can hope for any better things now. We shall stick it out to the end, but we are getting weaker, of course, and the end cannot be far. It seems

3960-438: Is replete with the mollusks , the vertebrates , the echinoderms , the brachiopods and some groups of arthropods . Fossil sites with exceptional preservation—sometimes including preserved soft tissues—are known as Lagerstätten —German for "storage places". These formations may have resulted from carcass burial in an anoxic environment with minimal bacteria, thus slowing decomposition. Lagerstätten span geological time from

4080-470: Is the difficulty of working out fossil ages. Beds that preserve fossils typically lack the radioactive elements needed for radiometric dating . This technique is our only means of giving rocks greater than about 50 million years old an absolute age, and can be accurate to within 0.5% or better. Although radiometric dating requires careful laboratory work, its basic principle is simple: the rates at which various radioactive elements decay are known, and so

4200-413: Is the science of deciphering the "layer-cake" that is the sedimentary record. Rocks normally form relatively horizontal layers, with each layer younger than the one underneath it. If a fossil is found between two layers whose ages are known, the fossil's age is claimed to lie between the two known ages. Because rock sequences are not continuous, but may be broken up by faults or periods of erosion , it

4320-467: Is very difficult to match up rock beds that are not directly adjacent. However, fossils of species that survived for a relatively short time can be used to match isolated rocks: this technique is called biostratigraphy . For instance, the conodont Eoplacognathus pseudoplanus has a short range in the Middle Ordovician period. If rocks of unknown age have traces of E. pseudoplanus , they have

4440-727: The Admiralty and, in August, as flag-captain to Rear-Admiral Sir George Egerton on HMS  Victorious . He was now moving in ever more exalted social circles—a telegram to Markham in February 1907 refers to meetings with Queen Amélie of Orléans and Luis Filipe, Prince Royal of Portugal , and a later letter home reports lunching with the Commander-in-Chief of the Fleet and Prince Heinrich of Prussia . The telegram related to

4560-624: The Antarctic Plateau , on which the South Pole is located. On the second venture, Scott led a party of five which reached the South Pole on 17 January 1912, less than five weeks after Amundsen's South Pole expedition . On the return journey from the Pole, a planned meeting with supporting dog teams from the base camp failed, despite Scott's written instructions, and at a distance of 162 miles (261 km) from their base camp at Hut Point and approximately 12.5 miles (20.1 km) from

4680-801: The Cambrian period to the present . Worldwide, some of the best examples of near-perfect fossilization are the Cambrian Maotianshan Shales and Burgess Shale , the Devonian Hunsrück Slates , the Jurassic Solnhofen Limestone , and the Carboniferous Mazon Creek localities. A fossil is said to be recrystallized when the original skeletal compounds are still present but in a different crystal form, such as from aragonite to calcite . Replacement occurs when

4800-560: The Discovery Expedition, was a joint enterprise of the RGS and the Royal Society . A long-cherished dream of Markham's, it required all of his skills and cunning to bring the expedition to fruition, under naval command and largely staffed by naval personnel. Scott may not have been Markham's first choice as leader but, having decided on him, the older man remained a constant supporter. There were committee battles over

4920-586: The Phacops fossil record was that the aftermaths of the lens changes, but not the rapidly occurring evolutionary process, were fossilized. This and other data led Stephen Jay Gould and Niles Eldredge to publish their seminal paper on punctuated equilibrium in 1971. Synchrotron X-ray tomographic analysis of early Cambrian bilaterian embryonic microfossils yielded new insights of metazoan evolution at its earliest stages. The tomography technique provides previously unattainable three-dimensional resolution at

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5040-569: The Renaissance . Leonardo da Vinci concurred with Aristotle's view that fossils were the remains of ancient life. For example, Leonardo noticed discrepancies with the biblical flood narrative as an explanation for fossil origins: If the Deluge had carried the shells for distances of three and four hundred miles from the sea it would have carried them mixed with various other natural objects all heaped up together; but even at such distances from

5160-602: The Song dynasty during the 11th century, who kept a specific seashell fossil with his own poem engraved on it. In his Dream Pool Essays published in 1088, Song dynasty Chinese scholar-official Shen Kuo hypothesized that marine fossils found in a geological stratum of mountains located hundreds of miles from the Pacific Ocean was evidence that a prehistoric seashore had once existed there and shifted over centuries of time . His observation of petrified bamboos in

5280-402: The law of superposition ) preserved different assemblages of fossils, and that these assemblages succeeded one another in a regular and determinable order. He observed that rocks from distant locations could be correlated based on the fossils they contained. He termed this the principle of faunal succession . This principle became one of Darwin's chief pieces of evidence that biological evolution

5400-403: The thunderbird . There is no such direct mythological connection known from prehistoric Africa, but there is considerable evidence of tribes there excavating and moving fossils to ceremonial sites, apparently treating them with some reverence. In Japan, fossil shark teeth were associated with the mythical tengu , thought to be the razor-sharp claws of the creature, documented some time after

5520-453: The 16th century. Roman naturalist Pliny the Elder wrote of " tongue stones ", which he called glossopetra . These were fossil shark teeth, thought by some classical cultures to look like the tongues of people or snakes. He also wrote about the horns of Ammon , which are fossil ammonites , whence the group of shelled octopus-cousins ultimately draws its modern name. Pliny also makes one of

5640-739: The 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absolute ages of rocks and the fossils they host. There are many processes that lead to fossilization , including permineralization , casts and molds, authigenic mineralization , replacement and recrystallization, adpression, carbonization , and bioimmuration. Fossils vary in size from one- micrometre (1 μm) bacteria to dinosaurs and trees, many meters long and weighing many tons. A fossil normally preserves only

5760-413: The 8th century AD. In medieval China, the fossil bones of ancient mammals including Homo erectus were often mistaken for " dragon bones" and used as medicine and aphrodisiacs . In addition, some of these fossil bones are collected as "art" by scholars, who left scripts on various artifacts, indicating the time they were added to a collection. One good example is the famous scholar Huang Tingjian of

5880-688: The Admiralty-based appointment of naval assistant to the Second Sea Lord , which placed him conveniently in London. In December, he was released on half-pay to take up the full-time command of the British Antarctic Expedition 1910, to be known as the Terra Nova expedition from its ship, Terra Nova . It was the expressed hope of the RGS that this expedition would be "scientific primarily, with exploration and

6000-559: The Polar Plateau stage of their journey, approximately 300 miles (480 km), by 7 February. In the following days, as the party made the 100 miles (160 km) descent of the Beardmore Glacier , the physical condition of Edgar Evans, which Scott had noted with concern as early as 23 January, declined sharply. A fall on 4 February had left Evans "dull and incapable," and on 17 February, after another fall, he died near

6120-567: The Pole as secondary objects" but, unlike the Discovery expedition , neither they nor the Royal Society were in charge this time. In his expedition prospectus, Scott stated that its main objective was "to reach the South Pole, and to secure for the British Empire the honour of this achievement". Scott had, as Markham observed, been "bitten by the Pole mania". In a memorandum of 1908, Scott presented his view that man-hauling to

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6240-615: The Preservation of Favoured Races in the Struggle for Life , the oldest animal fossils were those from the Cambrian Period, now known to be about 540 million years old. He worried about the absence of older fossils because of the implications on the validity of his theories, but he expressed hope that such fossils would be found, noting that: "only a small portion of the world is known with accuracy." Darwin also pondered

6360-566: The Proterozoic and deeper still in the Archean is only "recounted by microscopic fossils and subtle chemical signals." Molecular biologists, using phylogenetics , can compare protein amino acid or nucleotide sequence homology (i.e., similarity) to evaluate taxonomy and evolutionary distances among organisms, with limited statistical confidence. The study of fossils, on the other hand, can more specifically pinpoint when and in what organism

6480-555: The Royal Geographical Society, who would loom large in Scott's later career. On this occasion, 1 March 1887, Markham observed Midshipman Scott's cutter winning that morning's race across the bay. Markham's habit was to "collect" likely young naval officers with a view to their undertaking polar exploration work in the future. He was impressed by Scott's intelligence, enthusiasm and charm, and the 18-year-old midshipman

6600-514: The Royal Navy however, opportunities for career advancement were both limited and keenly sought after by ambitious officers. Early in June 1899, while home on leave, he had a chance encounter in a London street with Clements Markham, who was now knighted and President of the Royal Geographical Society (RGS), and learned for the first time of an impending Antarctic expedition with Discovery , under

6720-485: The South Pole was impossible and that motor traction was needed. Snow vehicles did not yet exist however and so his engineer Reginald Skelton developed the idea of a caterpillar track for snow surfaces. In the middle of 1909, Scott realised that motors were unlikely to get him all the way to the Pole and decided additionally to take horses (based on Shackleton's near success in attaining the Pole, using ponies), dogs and skis, after consultation with Nansen during trials of

6840-594: The South, the object being to hasten the return of the third Southern unit [the polar party] and give it a chance to catch the ship. The date of your departure must depend on news received from returning units, the extent of the depot of dog food you have been able to leave at One Ton Camp, the state of the dogs, etc ... It looks at present as though you should aim at meeting the returning party about March 1 in Latitude 82 or 82.30 The march south began on 1 November 1911,

6960-500: The UK. However, in the last decades of the 20th century, questions were raised about his competence and character. Commentators in the 21st century have regarded Scott more positively after assessing the temperature drop below −40 °C (−40 °F) in March 1912, and after re-discovering Scott's written orders of October 1911, in which he had instructed the dog teams to meet and assist him on

7080-486: The auspices of the RGS. It was the opportunity for early command and a chance to distinguish himself, rather than any predilection for polar exploration which motivated Scott, according to Crane. What passed between them on this occasion is not recorded, but a few days later, on 11 June, Scott appeared at the Markham residence and volunteered to lead the expedition. The British National Antarctic Expedition, later known as

7200-413: The beach, indicating the fossils were once living animals. He had previously explained them in terms of vaporous exhalations , which Persian polymath Avicenna modified into the theory of petrifying fluids ( succus lapidificatus ). Recognition of fossil seashells as originating in the sea was built upon in the 14th century by Albert of Saxony , and accepted in some form by most naturalists by

7320-714: The beginning of recorded history. The fossils themselves are referred to as the fossil record. The fossil record was one of the early sources of data underlying the study of evolution and continues to be relevant to the history of life on Earth . Paleontologists examine the fossil record to understand the process of evolution and the way particular species have evolved. Fossils have been visible and common throughout most of natural history, and so documented human interaction with them goes back as far as recorded history, or earlier. There are many examples of paleolithic stone knives in Europe, with fossil echinoderms set precisely at

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7440-437: The death toll among the ponies increased to six, three drowning when sea-ice unexpectedly disintegrated, casting in doubt the possibility of reaching the pole at all. However, during the 1911 winter, Scott's confidence increased: on 2 August, after the return of a three-man party from their winter journey to Cape Crozier , Scott wrote, "I feel sure we are as near perfection as experience can direct". Scott outlined his plans for

7560-670: The deity Sopdu , the Morning Star, equivalent of Venus in Roman mythology. Fossils appear to have directly contributed to the mythology of many civilizations, including the ancient Greeks. Classical Greek historian Herodotos wrote of an area near Hyperborea where gryphons protected golden treasure. There was indeed gold mining in that approximate region , where beaked Protoceratops skulls were common as fossils. A later Greek scholar, Aristotle , eventually realized that fossil seashells from rocks were similar to those found on

7680-403: The dogs succumbed to disease in the first season. Nevertheless, the dogs' performance impressed Scott, and, despite moral qualms, he implemented the principle of slaughtering dogs for dog food to increase the others' range. During an early attempt at ice travel, a blizzard trapped expedition members in their tent and their decision to leave it resulted in the death of George Vince, who slipped over

7800-466: The dry northern climate zone of what is now Yan'an , Shaanxi province, China, led him to advance early ideas of gradual climate change due to bamboo naturally growing in wetter climate areas. In medieval Christendom , fossilized sea creatures on mountainsides were seen as proof of the biblical deluge of Noah's Ark . After observing the existence of seashells in mountains, the ancient Greek philosopher Xenophanes (c. 570 – 478 BC) speculated that

7920-415: The earlier known references to toadstones , thought until the 18th century to be a magical cure for poison originating in the heads of toads, but which are fossil teeth from Lepidotes , a Cretaceous ray-finned fish. The Plains tribes of North America are thought to have similarly associated fossils, such as the many intact pterosaur fossils naturally exposed in the region, with their own mythology of

8040-550: The earliest known stromatolites are over 3.4 billion years old. The fossil record is life's evolutionary epic that unfolded over four billion years as environmental conditions and genetic potential interacted in accordance with natural selection. The Virtual Fossil Museum Paleontology has joined with evolutionary biology to share the interdisciplinary task of outlining the tree of life, which inevitably leads backwards in time to Precambrian microscopic life when cell structure and functions evolved. Earth's deep time in

8160-464: The earth during earthquake and subsidences, and petrifies whatever comes into contact with it. As a matter of fact, the petrifaction of the bodies of plants and animals is not more extraordinary than the transformation of waters. From the 13th century to the present day, scholars pointed out that the fossil skulls of Deinotherium giganteum , found in Crete and Greece, might have been interpreted as being

8280-591: The end of March 2006, another iceberg coming from the Ross Ice Shelf, named C-16, hit the ice tongue, breaking off another large piece (more than 100 square kilometres or 39 square miles). Both of these incidents are described in a study that benefited from the fortuitous presence of a GPS beacon on one of the icebergs. This article about a glacier in Scott Coast is a stub . You can help Misplaced Pages by expanding it . Robert Falcon Scott This

8400-471: The entire Ross Sea sector. Shackleton refused to concede. According to a letter written to Stanfords bookshop owner Edward Stanford , Scott seemed to take offence with a map that was published that had shown how far south Scott and Shackleton had travelled during the Discovery Expedition. Scott implied in this letter, dated in 1907 and discovered in the shop archives in 2018, that having

8520-478: The existence of a world previous to ours, destroyed by some kind of catastrophe. Interest in fossils, and geology more generally, expanded during the early nineteenth century. In Britain, Mary Anning 's discoveries of fossils, including the first complete ichthyosaur and a complete plesiosaurus skeleton, sparked both public and scholarly interest. Early naturalists well understood the similarities and differences of living species leading Linnaeus to develop

8640-569: The expedition, visited the Discovery the day before the ship left British shores in August 1901, and during the visit appointed Scott a Member Fourth Class of the Royal Victorian Order , his personal gift. Experience of Antarctic or Arctic waters was almost entirely lacking within the 50-strong party and there was very little special training in equipment or techniques before the ship set sail. Dogs were taken, as were skis, but

8760-538: The first ever discovered Antarctic fossils and proved that Antarctica had once been warm and connected to other continents. Fossil A fossil (from Classical Latin fossilis , lit.   ' obtained by digging ' ) is any preserved remains, impression, or trace of any once-living thing from a past geological age . Examples include bones , shells , exoskeletons , stone imprints of animals or microbes , objects preserved in amber , hair , petrified wood and DNA remnants. The totality of fossils

8880-552: The first relief ship in March 1903. Second-in-command Albert Armitage , a merchant officer, was offered the chance to go home on compassionate grounds, but interpreted the offer as a personal slight, and refused. Armitage also promoted the idea that the decision to send Shackleton home on the relief ship arose from Scott's animosity rather than Shackleton's physical breakdown. Although there was later tension between Scott and Shackleton, when their polar ambitions directly clashed, mutual civilities were preserved in public; Scott joined in

9000-459: The glacier foot. Still needing to travel 400 miles (640 km) across the Ross Ice Shelf , the prospects of Scott's party steadily worsened as they struggled northward with deteriorating weather, a puzzling lack of fuel in the depots, hunger, and exhaustion. Meanwhile, back at Cape Evans, the Terra Nova arrived at the beginning of February, and Atkinson decided to unload the supplies from

9120-420: The grounds that Scott was not important or well-connected enough to warrant this. Documents that may have offered explanations are missing from Admiralty records. In 1894, while serving as torpedo officer on the depot ship HMS  Vulcan , Scott learned of the financial calamity that had overtaken his family. John Scott, having sold the brewery and invested the proceeds unwisely, had lost all his capital and

9240-519: The hand grip, dating back to Homo heidelbergensis and Neanderthals . These ancient peoples also drilled holes through the center of those round fossil shells, apparently using them as beads for necklaces. The ancient Egyptians gathered fossils of species that resembled the bones of modern species they worshipped. The god Set was associated with the hippopotamus , therefore fossilized bones of hippo-like species were kept in that deity's temples. Five-rayed fossil sea urchin shells were associated with

9360-419: The last two four-man groups had reached 87°34′S. Scott announced his decision: five men — himself, Wilson , Bowers , Oates and E. Evans — would go forward; the other three - ( Teddy Evans , William Lashly and Tom Crean ) - would return. The chosen group marched on, reaching the Pole on 17 January, only to find a tent left in place by Amundsen, in it containing a letter dated 18 December. Scott's anguish

9480-535: The limits of fossilization. Fossils of two enigmatic bilaterians, the worm-like Markuelia and a putative, primitive protostome , Pseudooides , provide a peek at germ layer embryonic development. These 543-million-year-old embryos support the emergence of some aspects of arthropod development earlier than previously thought in the late Proterozoic. The preserved embryos from China and Siberia underwent rapid diagenetic phosphatization resulting in exquisite preservation, including cell structures. This research

9600-612: The margin of the David Glacier to identify a rapid thinning event initiated over 7,000 years ago that endured for ~ 2,000 years. The David Glacier grounding line, where the ice leaves the shore and begins to float, is in a depth of ~1,900 m (6,200 ft). The floating ice tongue itself is a significant factor contributing to the frequent formation of the Terra Nova Bay polynya. The polynya enables both production of sea ice and high salinity seawater. The floating ice

9720-413: The meteorological and magnetic readings, however, were later criticised as amateurish and inaccurate. At the end of the expedition it took the combined efforts of two relief ships and the use of explosives to free Discovery from the ice. Scott's insistence during the expedition on Royal Navy formalities had made for uneasy relations with the merchant navy contingent, many of whom departed for home with

9840-455: The motors in Norway in March 1910. Man-hauling would still be needed on the Polar Plateau, on the assumption that motors and animals could not ascend the crevassed Beardmore Glacier . Dog expert Cecil Meares was going to Siberia to select the dogs and Scott ordered that, while he was there, he should deal with the purchase of Manchurian ponies. Meares was not an experienced horse-dealer and

9960-476: The naval training ship HMS  Britannia at Dartmouth . Having passed these exams Scott began his naval career in 1881, as a 13-year-old cadet. One of his older sisters was Ettie Ellison-Macartney . In The Worst Journey in the World , author Apsley Cherry-Garrard claims that "physically Scott had been a delicate boy but developed into a strong man, 5 feet 9 inches in height, 11 stone 6 lbs. in weight, with

10080-492: The next depot, Scott and his companions died. When Scott and his party's bodies were discovered, they had in their possession the first Antarctic fossils discovered. The fossils were determined to be from the Glossopteris tree and proved that Antarctica was once forested and joined to other continents. Before his appointment to lead the Discovery expedition, Scott had a career as a Royal Navy officer. In 1899, he had

10200-463: The official receptions that greeted Shackleton on his return in 1909 after the Nimrod Expedition , and the two exchanged polite letters about their respective ambitions in 1909–1910. Discovery returned to Britain in September 1904. The expedition had caught the public imagination, and Scott became a popular hero. He was awarded a cluster of honours and medals, including many from overseas, and

10320-462: The old Discovery base. For this he was roundly condemned by the British polar establishment at the time. Among modern polar writers, Ranulph Fiennes regards Shackleton's actions as a technical breach of honour, but adds: "My personal belief is that Shackleton was basically honest but circumstances forced his McMurdo landing, much to his distress." The polar historian Beau Riffenburgh states that

10440-539: The pole. A harrowing return journey brought about Shackleton's physical collapse and his early departure from the expedition. The second year showed improvements in technique and achievement, culminating in Scott's western journey which led to the discovery of the Polar Plateau . This has been described by one writer as "one of the great polar journeys". The scientific results of the expedition included important biological, zoological and geological findings. Some of

10560-681: The ponies he chose proved mostly of poor quality and ill-suited to prolonged Antarctic work. Meanwhile, Scott also recruited Bernard Day, from Shackleton's expedition, as his motor expert. On 15 June 1910, Scott's ship, Terra Nova , an old converted whaler, set sail from Cardiff , South Wales. Scott meanwhile was fundraising in Britain and joined the ship later in South Africa. Arriving in Melbourne , Australia in October 1910, Scott received

10680-421: The ponies, advised Scott to kill ponies for food and advance the depot to 80°S, which Scott refused to do. Oates is reported as saying to Scott, "Sir, I'm afraid you'll come to regret not taking my advice." Four ponies died during this journey, either from the cold or because they slowed the team down and were shot. On its return to base, the expedition learned of the presence of Amundsen, camped with his crew and

10800-545: The problems involved in matching rocks of the same age across continents . Family-tree relationships also help to narrow down the date when lineages first appeared. For instance, if fossils of B or C date to X million years ago and the calculated "family tree" says A was an ancestor of B and C, then A must have evolved earlier. It is also possible to estimate how long ago two living clades diverged, in other words approximately how long ago their last common ancestor must have lived, by assuming that DNA mutations accumulate at

10920-419: The promise to Scott "should never ethically have been demanded," and compares Scott's intransigence on this matter unfavourably with the generous attitudes of the Norwegian explorer Fridtjof Nansen , who gave freely of his advice and expertise to all, whether they were potential rivals or not. Scott, who because of his Discovery fame had entered Edwardian society, first met Kathleen Bruce early in 1907 at

11040-443: The ratio of the radioactive element to its decay products shows how long ago the radioactive element was incorporated into the rock. Radioactive elements are common only in rocks with a volcanic origin, and so the only fossil-bearing rocks that can be dated radiometrically are volcanic ash layers, which may provide termini for the intervening sediments. Consequently, palaeontologists rely on stratigraphy to date fossils. Stratigraphy

11160-462: The relative ages of rock strata as determined by the early paleontologists and stratigraphers . Since the early years of the twentieth century, absolute dating methods, such as radiometric dating (including potassium/argon , argon/argon , uranium series , and, for very recent fossils, radiocarbon dating ) have been used to verify the relative ages obtained by fossils and to provide absolute ages for many fossils. Radiometric dating has shown that

11280-560: The return trip. Scott was born on 6 June 1868, the third of six children and elder son of John Edward, a brewer and magistrate, and Hannah (née Cuming) Scott of Stoke Damerel , near Devonport . There were also naval and military traditions in the family, Scott's grandfather and four uncles all having served in the army or navy. John Scott's prosperity came from the ownership of a small Plymouth brewery which he had inherited from his father and subsequently sold. Scott's early childhood years were spent in comfort, but some years later, when he

11400-427: The same day, Oates, whose toes had become frostbitten, voluntarily left the tent and walked to his death. Scott wrote that Oates' last words were "I am just going outside and may be some time". After walking 20 miles (32 km) farther despite Scott's toes now becoming frostbitten, the three remaining men made their final camp on 19 March, approximately 12.5 miles (20.1 km) short of One Ton Depot. The next day

11520-409: The same in 1912 during their return journey to Cape Evans . The name Drygalski Ice Tongue is unusual, as it is now common to give the same name to a glacier and its glacier tongue and refer to the seaward extension as a glacier tongue . The Drygalski Ice Tongue is thought to be at least 4,000 years old. The recent history of the combined glacier and ice tongue used analysis of rocks deposited along

11640-405: The scope of Scott's responsibilities, with the Royal Society pressing to put a scientist in charge of the expedition's programme while Scott merely commanded the ship. Eventually, however, Markham's view prevailed; Scott was given overall command, and was promoted to the rank of commander before Discovery sailed for the Antarctic on 6 August 1901. King Edward VII , who showed a keen interest in

11760-429: The sea and that they were still living when the strait of Gibraltar was cut through. In the mountains of Parma and Piacenza multitudes of shells and corals with holes may be seen still sticking to the rocks.... In 1666, Nicholas Steno examined a shark, and made the association of its teeth with the "tongue stones" of ancient Greco-Roman mythology, concluding that those were not in fact the tongues of venomous snakes, but

11880-423: The sea we see the oysters all together and also the shellfish and the cuttlefish and all the other shells which congregate together, found all together dead; and the solitary shells are found apart from one another as we see them every day on the sea-shores. And we find oysters together in very large families, among which some may be seen with their shells still joined together, indicating that they were left there by

12000-402: The service pay of Scott and the salary of younger brother Archie, who had left the army for a higher-paid post in the colonial service. Archie's own death in the autumn of 1898, after contracting typhoid fever , meant that the whole financial responsibility for the family rested on Scott. Promotion, and the extra income this would bring, now became a matter of considerable concern to Scott. In

12120-458: The ship with his own men rather than set out south with the dogs to meet Scott as ordered. When Atkinson finally did leave south for the planned rendezvous with Scott, he encountered the scurvy-ridden Edward ("Teddy") Evans who needed urgent medical attention. Atkinson therefore tried to send the experienced navigator Wright south to meet Scott, but chief meteorologist Simpson declared he needed Wright for scientific work. Atkinson then decided to send

12240-537: The short-sighted Cherry-Garrard on 25 February, who was not able to navigate, only as far as One Ton depot (which is within sight of Mount Erebus), effectively cancelling Scott's orders for meeting him at latitude 82 or 82.30 on 1 March. On the return journey from the Pole, Scott reached the 82°S meeting point for the dog teams, 300 miles (480 km) from Hut Point , three days ahead of schedule, noting in his diary for 27 February 1912, "We are naturally always discussing possibility of meeting dogs, where and when, etc. It

12360-468: The skin yellow & transparent & I’ve never seen anything worse in my life." Their final camp became their tomb; their records and personal belongings were retrieved before the tent roof was lowered over the bodies and a high cairn of snow was erected over it, topped by a roughly fashioned cross, erected using Gran's skis. Next to their bodies lay 35 pounds (16 kg) of Glossopteris tree fossils which they had dragged on hand sledges. These were

12480-586: The skulls of the Cyclopes of Greek mythology , and are possibly the origin of that Greek myth. Their skulls appear to have a single eye-hole in the front, just like their modern elephant cousins, though in fact it's actually the opening for their trunk. In Norse mythology , echinoderm shells (the round five-part button left over from a sea urchin) were associated with the god Thor , not only being incorporated in thunderstones , representations of Thor's hammer and subsequent hammer-shaped crosses as Christianity

12600-455: The southern journey to the entire shore party, leaving open who would form the final polar team, according to their performance during the polar travel. Eleven days before Scott's teams set off towards the pole, Scott gave the dog driver Meares the following written orders at Cape Evans, dated 20 October 1911, to secure Scott's speedy return from the pole using dogs: About the first week of February I should like you to start your third journey to

12720-467: The sudden appearance of many groups (i.e. phyla ) in the oldest known Cambrian fossiliferous strata. Since Darwin's time, the fossil record has been extended to between 2.3 and 3.5 billion years. Most of these Precambrian fossils are microscopic bacteria or microfossils . However, macroscopic fossils are now known from the late Proterozoic. The Ediacara biota (also called Vendian biota) dating from 575 million years ago collectively constitutes

12840-451: The teeth of some long-extinct species of shark. Robert Hooke (1635–1703) included micrographs of fossils in his Micrographia and was among the first to observe fossil forams . His observations on fossils, which he stated to be the petrified remains of creatures some of which no longer existed, were published posthumously in 1705. William Smith (1769–1839) , an English canal engineer, observed that rocks of different ages (based on

12960-399: The theory and practical examinations. A small blot occurred in the summer of 1893 when, while commanding a torpedo boat, Scott ran it aground, a mishap which earned him a mild rebuke. During the research for his dual biography of Scott and Roald Amundsen, polar historian Roland Huntford investigated a possible scandal in Scott's early naval career, related to the period 1889–1890 when Scott

13080-488: The two men's names together on this map indicated that there was "dual leadership" between Scott and Shackleton which was "not in accordance with fact." After the owner replied with an apology over the issue, Scott expressed his regret at the nature of the previous letter and stated, "I tried to be impartial in giving credit to my companions who one and all laboured honestly and well as I have endeavoured to record....I understand now of course that you had no personal knowledge of

13200-425: The will of Providence, determined still to do our best to the last ... Had we lived, I should have had a tale to tell of the hardihood, endurance, and courage of my companions which would have stirred the heart of every Englishman. These rough notes and our dead bodies must tell the tale, but surely, surely, a great rich country like ours will see that those who are dependent on us are properly provided for. Scott

13320-515: The wording and I must express regret that I failed to realise your identity when I first wrote." Finally, to end the impasse, Shackleton agreed, in a letter to Scott dated 17 May 1907, to work to the east of the 170°W meridian and therefore to avoid all the familiar Discovery ground. In the end it was a promise that he was unable to keep after his search for alternative landing grounds proved fruitless. With his only other option being to return home, he set up his headquarters at Cape Royds , close to

13440-524: The world was once inundated in a great flood that buried living creatures in drying mud. In 1027, the Persian Avicenna explained fossils' stoniness in The Book of Healing : If what is said concerning the petrifaction of animals and plants is true, the cause of this (phenomenon) is a powerful mineralizing and petrifying virtue which arises in certain stony spots, or emanates suddenly from

13560-429: Was a lieutenant on HMS  Amphion . According to Huntford, Scott "disappears from naval records" for eight months, from mid-August 1889 until 26 March 1890. Huntford hints at involvement with a married American woman, a cover-up, and protection by senior officers. Biographer David Crane reduces the missing period to eleven weeks, but is unable to clarify further. He rejects the notion of protection by senior officers on

13680-458: Was adopted, but also kept in houses to garner Thor's protection. These grew into the shepherd's crowns of English folklore, used for decoration and as good luck charms, placed by the doorway of homes and churches. In Suffolk , a different species was used as a good-luck charm by bakers, who referred to them as fairy loaves , associating them with the similarly shaped loaves of bread they baked. More scientific views of fossils emerged during

13800-430: Was duly noted. In March 1888 Scott passed his examinations for sub-lieutenant, with four first class certificates out of five. His career progressed smoothly, with service on various ships and promotion to lieutenant in 1889. In 1891, after a long spell in foreign waters, he applied for the two-year torpedo training course on HMS  Vernon , an important career step. He graduated with first class certificates in both

13920-469: Was establishing his naval career, the family suffered serious financial misfortune. In accordance with the family's tradition, Scott and his younger brother Archie were predestined for careers in the armed services. Scott spent four years at a local day school before being sent to Stubbington House School in Hampshire, a cramming establishment that prepared candidates for the entrance examinations to

14040-471: Was now virtually bankrupt. At the age of 63, and in poor health, he was forced to take a job as a brewery manager and move his family to Shepton Mallet , Somerset. Three years later, while Robert was serving with the Channel Squadron flagship HMS  Majestic , John Scott died of heart disease, creating a fresh family crisis. Hannah Scott and her two unmarried daughters now relied entirely on

14160-511: Was promoted to the rank of captain . He was invited to Balmoral Castle , and King Edward VII promoted him to Commander of the Royal Victorian Order . Scott's next few years were crowded. For more than a year he was occupied with public receptions, lectures and the writing of the expedition record, The Voyage of the Discovery . In January 1906, he resumed his full-time naval career, first as an assistant director of Naval Intelligence at

14280-408: Was real. Georges Cuvier came to believe that most if not all the animal fossils he examined were remains of extinct species. This led Cuvier to become an active proponent of the geological school of thought called catastrophism . Near the end of his 1796 paper on living and fossil elephants he said: All of these facts, consistent among themselves, and not opposed by any report, seem to me to prove

14400-552: Was rewarded and, on 2 September 1908, at the Chapel Royal, Hampton Court Palace , the wedding took place. Their only child, Peter Markham Scott , born 14 September 1909, was to found the World Wide Fund for Nature (WWF) . Shackleton returned from the Antarctic having narrowly failed to reach the Pole and this gave Scott the impetus to proceed with plans for his second Antarctic expedition. On 24 March 1909, he took

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