101-456: Port Phillip ( Kulin : Narm-Narm ) or Port Phillip Bay is a horsehead-shaped enclosed bay on the central coast of southern Victoria , Australia . The bay opens into the Bass Strait via a short, narrow channel known as The Rip , and is completely surrounded by localities of Victoria's two largest cities — metropolitan Greater Melbourne in the bay's main eastern portion north of
202-519: A leopard seal ) has difficulty distinguishing between a white penguin belly and the reflective water surface. The dark plumage on their backs camouflages them from above. Gentoo penguins are the fastest underwater birds in the world. They are capable of reaching speeds up to 36 km (about 22 miles) per hour while searching for food or escaping from predators. They are also able to dive to depths of 170–200 meters (about 560–660 feet). The small penguins do not usually dive deep; they catch their prey near
303-662: A 600 square metre area. The project aimed to improve marine biodiversity, water quality and fish habitat. Like the Yarra which flows into it, Port Phillip faces the environmental concerns of pollution and water quality. Litter, silt and toxins can affect the beaches to the point where they are shut down by EPA Victoria . In 2008, the owner and master of Hong Kong-registered container vessel MV Sky Lucky were found liable for illegally disposing garbage into Port Phillip, convicted and fined $ 35,000. An Environmental Management Plan has been adopted for 2017-2027 in order to improve and ensure
404-454: A breeding season, though the rate the same pair recouples varies drastically. Most penguins lay two eggs in a clutch, although the two largest species, the emperor and the king penguins , lay only one. With the exception of the emperor penguin, where the male does it all, all penguins share the incubation duties. These incubation shifts can last days and even weeks as one member of the pair feeds at sea. Penguins generally only lay one brood;
505-515: A child, and 307 convicts with 17 convicts' wives and 7 children) entered Port Phillip. After some investigation it was decided to establish the settlement at a spot known as Sullivan Bay , very close to where Sorrento now exists. The expedition landed at Sullivan Bay on 17 October 1803, and the first of the "orders" issued by Collins bears that date. On 25 October, the King's birthday, the British flag
606-468: A closed bay that formed over the western portion of the prehistoric Bassian Plain, which was later completely flooded and became Bass Strait . The Aboriginal people inhabited the area long before the bay was formed, with evidence of occupation dating at least 40,000 years ago. Settler records indicate an oral history with at least 18,000 years of linearity when Boonwurrung Elder Ningerranarro spoke of his ancestors hunting kangaroo and possum where
707-545: A continuous circumpolar flow only around 30 mya, on the one hand forcing the Antarctic cooling, and on the other facilitating the eastward expansion of Spheniscus to South America and eventually beyond. Despite this, there is no fossil evidence to support the idea of crown radiation from the Antarctic continent in the Paleogene, although DNA study favors such a radiation. Later, an interspersed period of slight warming
808-707: A derivation from Welsh pen , 'head' and gwyn , 'white', including the Oxford English Dictionary , the American Heritage Dictionary , the Century Dictionary and Merriam-Webster , on the basis that the name was originally applied to the great auk, either because it was found on White Head Island ( Welsh : Pen Gwyn ) in Newfoundland, or because it had white circles around its eyes (though
909-464: A few sandy beaches, there mostly exists a greater variety of beaches, swampy wetlands and mangroves. The occasional pebble beach and rocky cliffs can also be found, mostly in the southern reaches. Due to its shallow depth, several artificial islands and forts have been built; however, despite the depth, it only hosts a few true islands. Many sandy, muddy banks and shallows exist in its southern reaches, such as Mud Islands , but most islands are located in
1010-462: A group of penguins on land is a waddle , and a group of penguins in the water is a raft . Since 1871, the Latin word Pinguinus has been used in scientific classification to name the genus of the great auk ( Pinguinus impennis , meaning "plump or fat without flight feathers "), which became extinct in the mid-19th century. As confirmed by a 2004 genetic study, the genus Pinguinus belongs in
1111-464: A land route to Western Port and also sailed to the northwest shore of Port Phillip. On this latter journey, a large group of about 200 Aboriginal people came to meet the Britishers with "hostile intentions", and "with the application of fire-arms absolutely necessary to repel them", several Aboriginal people were shot. Lack of fresh water and good timber led this first British attempt at settlement in
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#17327902073811212-485: A mostly Subantarctic distribution centred on South America ; some, however, range quite far northwards. They all lack carotenoid colouration and the former genus has a conspicuous banded head pattern; they are unique among living penguins by nesting in burrows. This group probably radiated eastwards with the Antarctic Circumpolar Current out of the ancestral range of modern penguins throughout
1313-638: A number of sites. Port Phillip lies in southern Victoria, separated from Bass Strait by the Bellarine Peninsula to the southwest and Mornington Peninsula to the southeast. It is the largest bay in Victoria and one of the largest inland bays in Australia. The narrow entrance to the bay, called the Rip , between Point Lonsdale and Point Nepean , features strong tidal streams made turbulent by
1414-663: A small ceremony at a place now known as the Point King Foreshore Reserve in Sorrento . A few days later Murray sailed out of the heads and returned to Sydney . About ten weeks after Murray, Matthew Flinders in HMS ; Investigator also found and entered the bay, unaware Murray had been there. The official history of Nicholas Baudin 's explorations in Le Géographe claimed they too had sighted
1515-622: A typical day will range from 6 °C (43 °F) to 14 °C (57 °F). Port Phillip is often warmer than the surrounding oceans and/or the land mass, particularly in spring and autumn; this can set up a "bay effect", similar to the " lake effect snow " seen in colder climates, where showers are intensified leeward of the bay (particularly in Melbourne 's eastern suburbs ). Port Phillip hosts many beaches, most of which are flat, shallow and long, with very small breaks making swimming quite safe. This attracts many tourists, mostly families, to
1616-667: Is an important feeding ground for waterbirds and migratory waders . The Mud Islands , off Sorrento , are an important breeding habitat for white-faced storm petrels , silver gulls , Australian pelicans and Pacific gulls . Salt marshes in the northwestern sections of the bay, such as that in the Werribee Sewage Farm and the adjacent Spit Nature Conservation Reserve , are within the Port Phillip Bay (Western Shoreline) and Bellarine Peninsula Ramsar Site , listed as wetlands of international importance under
1717-759: Is home to about 100 to 150 of the recently described species of bottlenose dolphin , the Burrunan dolphin ( Tursiops australis ). The other 50 or so of this rare species are to be found in the Gippsland Lakes . Port Phillip has lost over 95% of native flat oyster and blue mussel reefs since European settlement. In 2014 the Port Phillip Shellfish Reef restoration project set about restoring shellfish reefs at two locations off Hobsons Bay near St Kilda, and off Corio Bay near Avalon. 300,000 native Angasi oysters were laid on limestone rubble over
1818-460: Is much greater than in air). The emperor penguin has a maximum feather density of about nine feathers per square centimeter which is actually much lower than other birds that live in Antarctic environments. However, they have been identified as having at least four different types of feather: in addition to the traditional feather, the emperor has afterfeathers , plumules , and filoplumes . The afterfeathers are downy plumes that attach directly to
1919-457: Is or includes the paleeudyptines as recognized today – occurred on most Antarctic and Subantarctic coasts. Size plasticity was significant at this initial stage of radiation : on Seymour Island , Antarctica, for example, around 10 known species of penguins ranging in size from medium to large apparently coexisted some 35 mya during the Priabonian (Late Eocene). It is not known whether
2020-489: Is sometimes called " higher waterbirds " to distinguish them from the more ancient waterfowl . This group contains such birds as storks , rails , and the seabirds , with the possible exception of the Charadriiformes . Inside this group, penguin relationships are far less clear. Depending on the analysis and dataset, a close relationship to Ciconiiformes or to Procellariiformes has been suggested. Some think
2121-404: Is used by parents and chicks to locate one another in crowded colonies . Their eyes are adapted for underwater vision and are their primary means of locating prey and avoiding predators; in air it has been suggested that they are nearsighted , although research has not supported this hypothesis. Penguins have a thick layer of insulating feathers that keeps them warm in water (heat loss in water
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#17327902073812222-643: Is well-researched, many prehistoric forms are not fully described . Some seminal articles about the evolutionary history of penguins have been published since 2005. The basal penguins lived around the time of the Cretaceous–Paleogene extinction event in the general area of southern New Zealand and Byrd Land , Antarctica. Due to plate tectonics , these areas were at that time less than 1,500 kilometres (930 mi) apart rather than 4,000 kilometres (2,500 mi). The most recent common ancestor of penguins and Procellariiformes can be roughly dated to
2323-472: The Antarctic Peninsula and Patagonia have not yielded Paleogene fossils of the subfamily. Also, the earliest spheniscine lineages are those with the most southern distribution. The genus Aptenodytes appears to be the basalmost divergence among living penguins. They have bright yellow-orange neck, breast, and bill patches; incubate by placing their eggs on their feet, and when they hatch
2424-646: The Campanian – Maastrichtian boundary, around 70–68 mya. The oldest known fossil penguin species is Waimanu manneringi , which lived 62 mya in New Zealand. While they were not as well-adapted to aquatic life as modern penguins, Waimanu were flightless, with short wings adapted for deep diving. They swam on the surface using mainly their feet, but the wings were – as opposed to most other diving birds (both living and extinct) – already adapting to underwater locomotion. Perudyptes from northern Peru
2525-671: The Chattian (Late Oligocene), starting approximately 28 mya. While the two genera separated during this time, the present-day diversity is the result of a Pliocene radiation, taking place some 4–2 mya. The Megadyptes – Eudyptes clade occurs at similar latitudes (though not as far north as the Galápagos penguin ), has its highest diversity in the New Zealand region, and represents a westward dispersal. They are characterized by hairy yellow ornamental head feathers; their bills are at least partly red. These two genera diverged apparently in
2626-663: The Kulinic branch of Pama–Nyungan . Kulin, or perhaps Kulinic: Dixon (2002) accepts the Kulin languages as a family, and sees them as forming three languages: Penguin For prehistoric genera, see List of penguins#Fossil genera Penguins are a group of aquatic flightless birds from the family Spheniscidae ( / s f ɪ ˈ n ɪ s ɪ d iː , - d aɪ / ) of the order Sphenisciformes ( / s f ɪ ˈ n ɪ s ə f ɔːr m iː z / ). They live almost exclusively in
2727-474: The Lady Nelson off what is now known as Sorrento Beach. During this voyage, Murray records in his journal his first encounter with local Aboriginal peoples. This initially friendly encounter started with trading, eating, and gifting, and was suddenly interrupted by a violent ambush by a large group of Aboriginal people. "They were all clothed in opossum skins and in each basket a certain quantity of gum
2828-665: The Mornington Peninsula to Frankston , Safety Beach / Dromana and Rye to Portsea . Longshore drift carries sand from south to north during winter and from north to south during summer. Cliff erosion control has often resulted in sand starvation, necessitating offshore dredging to replenish the beach. On the western side of the bay there is a greater variety of beach types, including both sandy and sandstone rock beaches, seen at Queenscliff , St Leonards , Indented Head , Portarlington , Altona and Geelong's Eastern Beach . Numerous sandbanks and shoals occur in
2929-486: The Mornington Peninsula , and the city of Greater Geelong in the much smaller western portion (known as the Corio Bay ) north of the Bellarine Peninsula . Geographically, the bay covers 1,930 km (750 sq mi) and the shore stretches roughly 264 km (164 mi), with the volume of water around 25 km (6.0 cu mi). Most of the bay is navigable, although it is extremely shallow for its size —
3030-496: The Ramsar Convention , and the critically endangered orange-bellied parrot is found at three wintering sites with saltmarsh habitat around Port Phillip and the Bellarine Peninsula . A variety of seabirds , such as Australasian gannets , nest on artificial structures in the bay. Port Phillip contains 3 Marine Sanctuaries managed by Parks Victoria to protect and conserve the bay's biodiversity, ecological processes and
3131-621: The Southern Hemisphere : only one species , the Galápagos penguin , is found north of the Equator . Highly adapted for life in the ocean water, penguins have countershaded dark and white plumage and flippers for swimming. Most penguins feed on krill , fish , squid and other forms of sea life which they catch with their bills and swallow whole while swimming. A penguin has a spiny tongue and powerful jaws to grip slippery prey. They spend about half of their lives on land and
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3232-485: The indigeous Kulin nation . The first Europeans to enter the bay were the crews of HMS Lady Nelson , commanded by John Murray and, ten weeks later, HMS Investigator commanded by Matthew Flinders , in 1802. Subsequent expeditions into the bay took place in 1803 to establish the first settlement in Victoria, near Sorrento , but was abandoned in 1804. Thirty years later, settlers from Tasmania returned to establish Melbourne (now Victoria's capital city) at
3333-575: The last Ice Age around 8000 BCE and around 6000 BCE, when the sea-level rose to drown the vast river plains , wetlands and lakes at what was then the lower reaches of the Yarra River . The ancient Yarra and its tributaries (the other present-day rivers of the Port Phillip catchment) flowed down what is now the middle of the bay, formed a coastal lake in the southern reaches of the bay dammed by The Heads , and subsequently pouring out into
3434-494: The phylogenetic taxon Spheniscidae to what here is referred to as Spheniscinae. Furthermore, they restrict the phylogenetic taxon Sphenisciformes to flightless taxa, and establish the phylogenetic taxon Pansphenisciformes as equivalent to the Linnean taxon Sphenisciformes, i.e., including any flying basal "proto-penguins" to be discovered eventually. Given that neither the relationships of the penguin subfamilies to each other nor
3535-631: The scrub by the waterholes were "honey eaters, warblers, red coat robins, emu wren with 2 long feathers in tail, Laughing jack ass- everywhere, butcher bird, also known as shrike or whistling jackass, Quail where coverage good in bottom of scrub, turkey at Boneo and the big swamp off the property." On the flats were found spur wing plovers, minas, and leatherheads. In timbers near the flats were "many varieties of parrots, Lorry, Rosella, Blue mountain or honeysuckle parrot, Sulphur –crested white cockatoo, Black cockatoo of two kinds, Grey cockatoo with scarlet crest and Corella or cockatoo parrot." Among
3636-579: The "heterothermic loophole" that penguins utilize in order to survive in Antarctica. All extant penguins, even those that live in warmer climates, have a counter-current heat exchanger called the humeral plexus. The flippers of penguins have at least three branches of the axillary artery, which allows cold blood to be heated by blood that has already been warmed and limits heat loss from the flippers. This system allows penguins to efficiently use their body heat and explains why such small animals can survive in
3737-529: The Argus from Cowes, Flinders, Kangaroo Grounds, Mornington, Queenscliff, Eltham, Lilydale, Shoreham, and Cape Schanck, all mention the earthquake." Anthonys Nose is an escarpment landform of Devonian granite on the Mornington Peninsula that is located where Arthurs Seat ends as the mountain falls steeply towards Port Phillip and is part of the Selwyn Fault . In 1800, Lieutenant James Grant
3838-477: The Bay now lies. Large piles of semi-fossilised seashells known as middens can still be seen in places around the shoreline, marking the spots where Aboriginal people held feasts. They made a good living from the abundant sea-life, which included penguins and seals . In the cold season, they wore possum-skin cloaks and intricate feathered head-dresses. A dry period combined with sand bar formation, may have dried
3939-526: The Middle Miocene ( Langhian , roughly 15–14 mya), although the living species of Eudyptes are the product of a later radiation, stretching from about the late Tortonian (Late Miocene, 8 mya) to the end of the Pliocene. The geographical and temporal pattern of spheniscine evolution corresponds closely to two episodes of global cooling documented in the paleoclimatic record . The emergence of
4040-701: The Southern Hemisphere, they noticed their similar appearance to the great auk of the Northern Hemisphere and named them after this bird, although they are not closely related. The etymology of the word penguin is still debated. The English word is not apparently of French , Breton or Spanish origin (the latter two are attributed to the French word pingouin ), but first appears in English or Dutch. Some dictionaries suggest
4141-542: The Spheniscinae lies probably in the latest Paleogene and, geographically, it must have been much the same as the general area in which the order evolved: the oceans between the Australia-New Zealand region and the Antarctic. Presumably diverging from other penguins around 40 mya, it seems that the Spheniscinae were for quite some time limited to their ancestral area, as the well-researched deposits of
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4242-683: The Spheniscinae, as Aptenodytes ' autapomorphies are, in most cases, fairly pronounced adaptations related to that genus' extreme habitat conditions. As the former genus, Pygoscelis seems to have diverged during the Bartonian, but the range expansion and radiation that led to the present-day diversity probably did not occur until much later; around the Burdigalian stage of the Early Miocene , roughly 20–15 mya. The genera Spheniscus and Eudyptula contain species with
4343-542: The Subantarctic lineage at the end of the Bartonian corresponds with the onset of the slow period of cooling that eventually led to the ice ages some 35 million years later. With habitat on the Antarctic coasts declining, by the Priabonian more hospitable conditions for most penguins existed in the Subantarctic regions rather than in Antarctica itself. Notably, the cold Antarctic Circumpolar Current also started as
4444-530: The Yarra River, which make up today's Port of Melbourne . The Melbourne Harbor Trust and Geelong Harbor Trust were responsible for the piers and wharves in their respective cities — they are now the government owned Port of Melbourne Corporation and the privately operated GeelongPort. Kulin languages The Kulin languages are a group of closely related languages of the Kulin people , part of
4545-533: The air. In the water, however, penguins are astonishingly agile. Penguins' swimming looks very similar to birds' flight in the air. Within the smooth plumage a layer of air is preserved, ensuring buoyancy. The air layer also helps insulate the birds in cold waters. On land, penguins use their tails and wings to maintain balance for their upright stance. All penguins are countershaded for camouflage – that is, they have black backs and wings with white fronts. A predator looking up from below (such as an orca or
4646-676: The bay he described "scallop shells which were used as an oil lamp with a bulrush wick, banks of cockles covered with birds, grey and white gulls, a 13-16 lb size schnapper ground off Mt Martha Point, mutton fish or venus ear- bait, coatfish, parrot fish , leather jackets, flathead , dog fish, sting rays, shark tailed rays, and pig fish that he thought to be "very old". On the beaches could be sighted pelicans, penguins, grey and grey white gull, called "bungan" by aborigines (the Bunurong Mayone-bulluk clan), small white and lavender gull, pied oyster catchers, terns, cormorants,
4747-574: The bay is the driest part of southern Victoria and almost approaches a semi-arid climate ( BSk ) with a mean annual rainfall as low as 425 millimetres (17 in) (comparable to Nhill or Numurkah ), whilst the eastern shores less shielded by the Otways receive as much as 850 millimetres (33 in). Summer temperatures average around 25 °C (77 °F) during the day and 14 °C (57 °F) at night, but occasional northerly winds can push temperatures over 40 °C (104 °F), whilst in winter
4848-591: The bay of Port Phillip have shown increases. Unlike in Portland and on Great Ocean Road , Southern Rights in eastern Victorian waters are still critically endangered and in very small numbers; however, presences of cow-calf pairs in the bay in recent years indicate that Port Phillip was possibly once a wintering/calving ground for these whales. They swim very close to shores to take rests in shallow, sheltered waters, sometimes just next to piers in Frankston . The bay
4949-507: The bay out as recently as between 800 BCE and 1000 CE. Seismicity has been observed around the bay continually since the 1800s with earlier earthquakes recorded in local newspaper reports. An earthquake that occurred in July 1885 was described in a newspaper. "The earth-quake appears to have been confined to the southern portion of the colony, and principally to those places bordering on Bass's Straits and Port Phillip Bay. Telegrams to
5050-583: The bay's entrance, The Rip , and later lived with an Aboriginal Australian group for many years, being given up for dead. Port Phillip was then left mostly undisturbed until 1835, when settlers from Tasmania led by John Batman and John Pascoe Fawkner (who had been at the Sorrento settlement as a child) established Melbourne on the lower reaches of the Yarra. John Batman encountered William Buckley who then became an important translator in negotiations with
5151-401: The beaches of Port Phillip during the summer months and school holidays. Water sports such as body boarding and surfing are difficult or impossible, except in extreme weather conditions. However, stand up paddle boarding (SUP), kite surfing and wind surfing are very popular. Most sandy beaches are located on the bay's northern, eastern and southern shorelines, while the western shorelines host
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#17327902073815252-462: The bluedevil fish and fantastic sponge walls on the Lonsdale wall in the heads of the bay. It also hosts breeding colonies of Australian fur seals . Occasionally, Australian sea lions , New Zealand fur seals , subantarctic fur seals , and leopard seals may come into the bay as well. Certain individual southern elephant seals may frequent the bay as well. Swan Bay , adjacent to Queenscliff,
5353-462: The boat, Murray ordered grapeshot and round shot to be fired from the carronades aboard the ship at the fleeing Aboriginal people. Murray said "Thus did this treachery and unprovoked attack meet with its just punishment and at the same time taught us a useful lesson to be more cautious in future." After exploring the southern part of the bay, Murray formally took possession of the area on 8 March 1802 for King George III of Great Britain in
5454-412: The cherry trees in the garden at the homestead were "bronzewing pigeon and satin birds, love birds and honeyeating parakeets." Birds of prey were "eagle hawks, falcons, and owls, some white and of great size". Small numbers of common dolphins have become residents in eastern parts of the bay since the late 2000s. In recent years, the numbers of southern humpback and southern right whales entering
5555-421: The chicks are almost naked. This genus has a distribution centred on the Antarctic coasts and barely extends to some Subantarctic islands today. Pygoscelis contains species with a fairly simple black-and-white head pattern; their distribution is intermediate, centred on Antarctic coasts but extending somewhat northwards from there. In external morphology , these apparently still resemble the common ancestor of
5656-515: The crew of the Lady Nelson , commanded by John Murray , which entered the bay on 15 February 1802. The bay was then known as Narm-Narm by the people of the Kulin tribe, and Murray called the bay Port King after the Governor of New South Wales , Philip Gidley King . On 4 September 1805, King formally renamed it Port Phillip, in honour of his predecessor Arthur Phillip . Murray chose to base
5757-495: The deepest portion is only 24 m (79 ft) and half the bay is shallower than 8 m (26 ft). Its waters and coast are home to seals , whales , dolphins , corals and many kinds of seabirds and migratory waders . Before European settlement , the area around Port Phillip was divided between the territories of the Wathaurong (west), Wurundjeri (north) and Boonwurrung (south and east) people, all part of
5858-493: The east shore of the bay. Later, resorts further south such as Sorrento and Portsea became popular. The more swampy western shores of the bay were not so favoured, and have been used mainly for non-residential purposes such as agriculture, the Point Cook Royal Australian Air Force base and the Werribee Sewage Farm , and significant nature reserves. In recent decades the population along
5959-517: The emergence of another morphotype in the same area, the similarly sized but more gracile Palaeospheniscinae , as well as the radiation that gave rise to the current biodiversity of penguins. Modern penguins constitute two undisputed clades and another two more basal genera with more ambiguous relationships. To help resolve the evolution of this order , 19 high-coverage genomes that, together with two previously published genomes, encompass all extant penguin species have been sequenced. The origin of
6060-600: The end of the Paleogene , around 25 mya. Their decline and disappearance coincided with the spread of the Squalodontidae and other primitive, fish-eating toothed whales , which competed with them for food and were ultimately more successful. A new lineage, the Paraptenodytes , which includes smaller and stout-legged forms, had already arisen in southernmost South America by that time. The early Neogene saw
6161-421: The entrance at that time (30 March 1802) but this is almost certainly a later embellishment or error, being absent from the ship's logs and Baudin's own accounts. As a result of Murray's and Flinders' reports, King sent Lieutenant Charles Robbins in HMS Cumberland to explore Port Phillip fully. This surveying party, which included Charles Grimes , produced a mostly complete chart of Port Phillip including
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#17327902073816262-402: The exception is the little penguin, which can raise two or three broods in a season. Penguin eggs are smaller than any other bird species when compared proportionally to the weight of the parent birds; at 52 g (2 oz), the little penguin egg is 4.7% of its mothers' weight, and the 450 g (1 lb) emperor penguin egg is 2.3%. The relatively thick shell forms between 10 and 16% of
6363-475: The extreme cold of the Antarctic winter, the females are at sea fishing for food, leaving the males to brave the weather by themselves. They often huddle together to keep warm and rotate positions to make sure that each penguin gets a turn in the centre of the heat pack. Calculations of the heat loss and retention ability of marine endotherms suggest that most extant penguins are too small to survive in such cold environments. In 2007, Thomas and Fordyce wrote about
6464-472: The extreme cold. They can drink salt water because their supraorbital gland filters excess salt from the bloodstream. The salt is excreted in a concentrated fluid from the nasal passages. The great auk of the Northern Hemisphere, now extinct, was superficially similar to penguins, and the word penguin was originally used for that bird centuries ago. They are only distantly related to
6565-400: The family of the auks (Alcidae), within the order of the Charadriiformes . The birds currently known as penguins were discovered later and were so named by sailors because of their physical resemblance to the great auk. Despite this resemblance, however, they are not auks, and are not closely related to the great auk. They do not belong in the genus Pinguinus , and are not classified in
6666-408: The gullies, that were caught in box traps with sliding doors, porcupine ant eater or echidna that were at the back of Arthur's Seat mountain, the great iguana, tree lizard- 5 feet, python, and the rock or sleeping lizard." The trees were coast banksia, honey suckle, and grass trees "with crowns for thatching". The gum of Xanthorrhoea australis was used for carriage varnish. In the waters of
6767-571: The head was black). However, the Welsh word pen can also be used to mean 'front' and, in a maritime context, pen blaen means 'front end or part, bow (of a ship), prow'. An alternative etymology links the word to Latin pinguis , which means 'fat' or 'oil'. Support for this etymology can be found in the alternative Germanic word for penguin, fettgans or 'fat-goose', and the related Dutch word vetgans . Adult male penguins are sometimes called cocks , females sometimes called hens ;
6868-478: The historic McCrae Homestead on the southern shore of the bay, part of the Mornington Peninsula . In the letters he described in detail the natural history of the area in the 1840s, and the species he particularly remembered 60 years later. In 1939, Charles Daley read an article before the Royal Historical Society of Victoria based on these letters, which was published in its journal in 1940
6969-411: The little sandpiper, and musk ducks. In the swamps (which have since been filled in) were "The Nankeen bird with one long white feather behind the ear, The rail, The bittern, The snipe and jack snipe, Several ducks- wood duck, black duck, Teal, Spoonbill, Black swan Geese, Cranes, Blue and white coots, Water hens, Kingfishers here and there and swamp or ground parrot with the barred tail feathers." In
7070-620: The local Aboriginal tribesmen. In 1838 Geelong was founded, and became the main port serving the growing wool industry of the Western District . For a time Geelong rivalled Melbourne as the leading settlement on the bay, but the Gold Rush which began in 1851 gave Melbourne a decisive edge as the largest town in Victoria. As Melbourne prospered, its wealthy classes discovered the recreational uses of Port Phillip. Bayside suburbs such as St Kilda and Brighton were established on
7171-414: The main feathers and were once believed to account for the bird's ability to conserve heat when under water; the plumules are small down feathers that attach directly to the skin, and are much more dense in penguins than other birds; lastly the filoplumes are small (less than 1 cm long) naked shafts that end in a splay of fibers— filoplumes were believed to give flying birds a sense of where their plumage
7272-460: The marshy shallows of Swan Bay . Some of the bay's major islands include: Jellyfish are a familiar sight in Port Phillip, and its waters are home to species such as Australian fur seals , bottlenose dolphins , common dolphins , humpback whales , and southern right whales . Many other cetacean species may also migrate off the areas. The smooth toadfish is one of the most common fishes in muddy areas. The bay has many endemic species including
7373-607: The most part breed in large colonies, the exceptions being the yellow-eyed and Fiordland species; these colonies may range in size from as few as 100 pairs for gentoo penguins to several hundred thousand in the case of king, macaroni and chinstrap penguins. Living in colonies results in a high level of social interaction between birds, which has led to a large repertoire of visual as well as vocal displays in all penguin species. Agonistic displays are those intended to confront or drive off, or alternately appease and avoid conflict with, other individuals. Penguins form monogamous pairs for
7474-403: The mouth of the Yarra River in 1835, and Geelong at Corio Bay in 1838. Today, Port Phillip is the most densely populated catchment in Australia with an estimated 5.5 million people living around the bay; Melbourne's suburbs extend around much of the northern and eastern shorelines, and the city of Geelong sprawls around Corio Bay in the bay's western arm. Port Phillip formed between the end of
7575-635: The mouth of the Yarra River , which they visited on 2 February 1803. Robbins found Aboriginal habitations and groups of Aboriginal people at Tootgarook , Carrum Carrum , on the banks of the Yarra and at Geelong . King decided to place a convict settlement at Port Phillip, mainly to stake a claim to southern Australia ahead of the French. On 10 October 1803 a convoy of two ships HMS Calcutta and Ocean led by Captain David Collins carrying 402 people (5 Government officials, 9 officers of marines, 2 drummers, and 39 privates, 5 soldiers' wives and
7676-512: The natural and heritage features. Port Phillip's marine water quality is monitored by the Environment Protection Authority of Victoria and was fluctuating between Good to Very Good across the bay in 2021-2022. In 1906, George Gordon McCrae wrote two letters to a local schoolmaster at Dromana , Mr G.H. Rogers. His subject was his earliest recollections of an idyllic boyhood spent at Arthur's Seat Run, location of
7777-647: The other half in the sea. The largest living species is the emperor penguin ( Aptenodytes forsteri ): on average, adults are about 1.1 m (3 ft 7 in) tall and weigh 35 kg (77 lb). The smallest penguin species is the little blue penguin ( Eudyptula minor ), also known as the fairy penguin, which stands around 30–33 cm (12–13 in) tall and weighs 1.2–1.3 kg (2.6–2.9 lb). Today, larger penguins generally inhabit colder regions, and smaller penguins inhabit regions with temperate or tropical climates . Some prehistoric penguin species were enormous: as tall or heavy as an adult human. There
7878-652: The palaeeudyptines constitute a monophyletic lineage, or whether gigantism was evolved independently in a restricted Palaeeudyptinae and the Anthropornithinae – whether they were considered valid, or whether there was a wide size range present in the Palaeeudyptinae as delimited (i.e., including Anthropornis nordenskjoeldi ). The oldest well-described giant penguin, the 5-foot (1.5 m)-tall Icadyptes salasi , existed as far north as northern Peru about 36 mya. Gigantic penguins had disappeared by
7979-473: The penguin-like plotopterids (usually considered relatives of cormorants and anhingas ) may actually be a sister group of the penguins and those penguins may have ultimately shared a common ancestor with the Pelecaniformes and consequently would have to be included in that order, or that the plotopterids were not as close to other pelecaniforms as generally assumed, which would necessitate splitting
8080-408: The penguins, but are an example of convergent evolution . Around one in 50,000 penguins (of most species) are born with brown rather than black plumage. These are called isabelline penguins. Isabellinism is different from albinism. Isabelline penguins tend to live shorter lives than normal penguins, as they are not well-camouflaged against the deep and are often passed over as mates. Penguins for
8181-594: The penguins, puffins have a white chest, black back and short stubby wings providing excellent swimming ability in icy water. But, unlike penguins, puffins can fly, as flightless birds would not survive alongside land-based predators such as polar bears and foxes; there are no such predators in the Antarctic. Their similarities indicate that similar environments, although at great distances, can result in similar evolutionary developments, i.e. convergent evolution . Penguins are superbly adapted to aquatic life. Their wings have evolved to become flippers, useless for flight in
8282-400: The placement of the penguins in the avian phylogeny is presently resolved, this is confusing, so the established Linnean system is followed here. The number of penguin species is typically listed as between seventeen and nineteen. The International Ornithologists' Union recognizes six genera and eighteen species: Although the evolutionary and biogeographic history of Sphenisciformes
8383-566: The region later known as Victoria to be abandoned on 27 January 1804. When Collins left Port Phillip, the Calcutta proceeded to Sydney , and the Ocean to Risdon Cove in Tasmania , where they arrived on 15 February 1804. Prior to abandonment, a group of convicts including William Buckley , escaped from the settlement. Buckley took up residence in a cave near Point Lonsdale on the western side of
8484-518: The same family and order as the great auk. They were classified in 1831 by Charles Lucien Bonaparte in several distinct genera within the family Spheniscidae and order Sphenisciformes . The family name of Spheniscidae was given by Charles Lucien Bonaparte from the genus Spheniscus , the name of that genus comes from the Greek word σφήν sphēn " wedge " used for the shape of an African penguin 's swimming flippers. Some recent sources apply
8585-535: The southern section of the bay, and parts of the South Channel require occasional maintenance dredging. The region has an oceanic climate ( Köppen Cfb ) with warm summers possessing occasional very hot days due to northerly winds and mild winters. Annual rainfall, which is evenly distributed over the year, shows considerable variation due to the Otway Ranges to the southwest: the northwestern shore of
8686-544: The strong adaptive autapomorphies of the Sphenisciformes; a sometimes perceived fairly close relationship between penguins and grebes is almost certainly an error based on both groups' strong diving adaptations, which are homoplasies . On the other hand, different DNA sequence datasets do not agree in detail with each other either. What seems clear is that penguins belong to a clade of Neoaves (living birds except for paleognaths and fowl ) that comprises what
8787-641: The surface in dives that normally last only one or two minutes. Larger penguins can dive deep in case of need. Emperor penguins are the world's deepest-diving birds. They can dive to depths of approximately 550 meters (1,800 feet) while searching for food. Penguins either waddle on their feet or slide on their bellies across the snow while using their feet to propel and steer themselves, a movement called "tobogganing", which conserves energy while moving quickly. They also jump with both feet together if they want to move more quickly or cross steep or rocky terrain. Penguins have an average sense of hearing for birds; this
8888-556: The traditional Pelecaniformes into three. A 2014 analysis of whole genomes of 48 representative bird species has concluded that penguins are the sister group of Procellariiformes, from which they diverged about 60 million years ago (95% CI, 56.8–62.7). The distantly related Puffins , which live in the North Pacific and North Atlantic, developed similar characteristics to survive in the Arctic and sub-Arctic environments. Like
8989-468: The uneven contours of the seabed. The best time for small craft to enter the Rip is at slack water . Large ships require expert local guidance to enter and exit, provided by the Port Phillip maritime pilots . Work has begun to deepen the channel entrance, to allow newer, larger container ships to access Melbourne's docks. The eastern side of the bay is characterised by sandy beaches extending from St Kilda , Sandringham , Beaumaris , Carrum , and down
9090-563: The water quality is helping the marine life flourish as well as divide the supervising of the Bay between the government, community and industries. The southern section of the Bay near the Heads is covered by extensive sand banks, known as the "Great Sand". A shipping channel was dredged in an east–west direction from the Heads to near Arthur's Seat late in the nineteenth century, and maintained ever since. Early shipping used piers at Sandridge (Port Melbourne), but later moved to various wharves along
9191-491: The weight of a penguin egg, presumably to reduce the effects of dehydration and to minimize the risk of breakage in an adverse nesting environment. The yolk, too, is large and comprises 22–31% of the egg. Some yolk often remains when a chick is born, and is thought to help sustain the chick if the parents are delayed in returning with food. When emperor penguin mothers lose a chick, they sometimes attempt to "steal" another mother's chick, usually unsuccessfully as other females in
9292-416: The western side of the bay has grown more rapidly. In the 21st century, property along the Port Phillip coastline continues to be highly sought after. Port Phillip continues to be extensively used for recreational pursuits such as swimming, cycling, boating, and fishing. The bay also features a number of historical walks and fauna reserves. The traditional land owners of the area have also been acknowledged at
9393-551: The year after a large bushfire in January 1939 hastened the disappearance of much of the original surviving wildlife from the area. The names of the species reflect the titles given to them by the original European settlers of the bay. The animals he observed as a young boy were "immense droves of kangaroos , brush kangaroos or wallaby , paddy-melon , bandicoots (two varieties), great opossum (two varieties), ring tail, flying squirrel , flying mouse , dingoes or wild dogs in
9494-475: Was a great diversity of species in subantarctic regions, and at least one giant species in a region around 2,000 km south of the equator 35 mya , during the Late Eocene , a climate decidedly warmer than today. The word penguin first appears in literature at the end of the 16th century as a synonym for the great auk . When European explorers discovered what are today known as penguins in
9595-417: Was and whether or not it needed preening, so their presence in penguins may seem inconsistent, but penguins also preen extensively. The emperor penguin has the largest body mass of all penguins, which further reduces relative surface area and heat loss. They also are able to control blood flow to their extremities, reducing the amount of blood that gets cold, but still keeping the extremities from freezing. In
9696-645: Was dated to 42 mya. An unnamed fossil from Argentina proves that, by the Bartonian (Middle Eocene), some 39–38 mya, primitive penguins had spread to South America and were in the process of expanding into Atlantic waters. During the Late Eocene and the Early Oligocene (40–30 mya), some lineages of gigantic penguins existed. Nordenskjoeld's giant penguin was the tallest, growing nearly 1.80 meters (5.9 feet) tall. The New Zealand giant penguin
9797-770: Was ended by the Middle Miocene Climate Transition , a sharp drop in global average temperature from 14 to 12 mya, and similar abrupt cooling events followed at 8 mya and 4 mya; by the end of the Tortonian, the Antarctic ice sheet was already much like today in volume and extent. The emergence of most of today's Subantarctic penguin species almost certainly was caused by this sequence of Neogene climate shifts. Penguin ancestry beyond Waimanu remains unknown and not well-resolved by molecular or morphological analyses. The latter tend to be confounded by
9898-459: Was found. ... if we may judge from the number of their fires and other marks this part of the country is not thin of inhabitants. Their spears are of various kinds and all of them more dangerous than any I have yet seen." The crew in response shot at the Aboriginal people, and continued to shoot at them as they fled, inflicting likely mortal wounds on two of the Aboriginal people. Watching from
9999-419: Was hoisted over the tiny settlement and a little salvo of musketry celebrated the royal occasion. On 25 November the first white child was born in Victoria and was baptised on Christmas Day , receiving the name of William James Hobart Thorne. The first marriage took place on 28 November, when a free woman, Hannah Harvey was wedded to convict Richard Garrett. Small exploratory groups from this settlement surveyed
10100-606: Was probably the heaviest, weighing 80 kilograms (180 lb) or more. Both were found on New Zealand, the former also in the Antarctic farther eastwards. Traditionally, most extinct species of penguins, giant or small, had been placed in the paraphyletic subfamily called Palaeeudyptinae . More recently, with new taxa being discovered and placed in the phylogeny if possible, it is becoming accepted that there were at least two major extinct lineages. One or two closely related ones occurred in Patagonia , and at least one other—which
10201-524: Was the first known European to pass through Bass Strait from west to east in HMS Lady Nelson . He was also the first to see, and crudely chart, the south coast from Cape Banks in South Australia to Wilsons Promontory in Victoria. Grant gave the name "Governor King's Bay" to the body of water between Cape Otway and Wilsons Promontory, but did not venture in and discover Port Phillip. The first Europeans to find and enter Port Phillip, were
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