Pelican cooling spine

Other examples of the claim circulated on social media here and here. Kaeli Swift, pelican cooling spine, a postdoctoral researcher at the University of Washington, where she teaches about ornithology and wildlife ecology, debunked the claim in a video indo18.xom her YouTube channel.

The claim is accompanied by three pictures of birds with what appear to be their spines appearing to protrude out of their mouths, and an illustration of the process. Paleontologist Darren Naish added that the apparent appearance of the spine during these yawns is called glottis exposure, which involves the birds inverting the pouches beneath their beaks over their necks and chest. This helps bring the surrounding skin back into its normal position and is also related to hygiene, but is not connected to overheating. Furthermore, not all the birds are pelicans—the bird in the top left of the post is a shoebill. This article is part of our work fact checking potentially false pictures, videos and stories on Facebook. You can read more about this—and find out how to report Facebook content— here. Bad information ruins lives.

Pelican cooling spine

Pelicans genus Pelecanus are a genus of large water birds that make up the family Pelecanidae. They are characterized by a long beak and a large throat pouch used for catching prey and draining water from the scooped-up contents before swallowing. They have predominantly pale plumage, except for the brown and Peruvian pelicans. The bills, pouches, and bare facial skin of all pelicans become brightly coloured before the breeding season. The eight living pelican species have a patchy, seasonally-dependent yet global distribution, ranging latitudinally from the tropics to the temperate zone. Pelicans are absent from interior Amazonian South America, from polar regions and the open ocean; at least one species is known to migrate to the inland desert of Australia 's Red Centre , after heavy rains create temporary lakes. White pelicans are also observed at the American state of Utah 's Great Salt Lake , for example, some miles km from the nearest coastline the Pacific West Coast. They have also been seen hundreds of miles inland in North America, having flown northwards along the Mississippi River and other large waterways. Long thought to be related to frigatebirds , cormorants , tropicbirds , and gannets and boobies , pelicans instead are most closely related to the shoebill and hamerkop storks although these two birds are not actually true 'storks' , and are placed in the order Pelecaniformes. Ibises , spoonbills , herons , and bitterns have been classified in the same order. Fossil evidence of pelicans dates back at least 36 million years to the remains of a tibiotarsus recovered from late Eocene strata of Egypt that bears striking similarity to modern species of pelican. They can adapt to varying degrees of water salinity , from freshwater and brackish to—most commonly—seawater. They are gregarious birds, travelling in flocks, hunting cooperatively , and breeding colonially. Four white-plumaged species tend to nest on the ground, and four brown or grey-plumaged species nest mainly in trees.

It was depicted in art on the walls of tombs, and figured in funerary texts, as a protective symbol against snakes.

There are more than half a dozen species of pelicans, but all of them have the famous throat pouch for which the birds are best known. These large birds use their elastic pouches to catch fish—though different species use it in different ways. Many pelicans fish by swimming in cooperative groups. They may form a line or a "U" shape and drive fish into shallow water by beating their wings on the surface. When fish congregate in the shallows, the pelicans simply scoop them up.

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Pelican cooling spine

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The birds depicted in the meme are not all pelicans — one is a shoebill , similar to pelicans — and they're not cooling down either, said Sharon Stiteler , a National Park ranger and bird expert. The birds depicted in the meme are yawning, not sticking out their spines. Globally, pelican populations are adversely affected by these main factors: declining supplies of fish through overfishing or water pollution, destruction of habitat, direct effects of human activity such as disturbance at nesting colonies, hunting and culling, entanglement in fishing lines and hooks, and the presence of pollutants such as DDT and endrin. BirdLife species factsheet. Paper 40 : 48— Lifestyle The essential camping checklist for beginners. Pelicans are absent from interior Amazonian South America, from polar regions and the open ocean; at least one species is known to migrate to the inland desert of Australia 's Red Centre , after heavy rains create temporary lakes. Archived from the original PDF on 24 August Journal of Zoological Systematics and Evolutionary Research. The diet of pelicans usually consists of fish, [55] but occasionally amphibians , turtles, crustaceans , insects , birds, and mammals are also eaten. Tommy; Anderson, Daniel W Archived from the original PDF on 6 October

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Southern Asia from southern Pakistan across India east to Indonesia; [23] extinct in the Philippines and possibly eastern China. November London, United Kingdom: Academic Press. Diet: Carnivore. How big, or often, they yawn can depend on how vulnerable a bird is to predators. Was this helpful? Reichenbach in " PDF. Great white pelicans on Dyer Island, in the Western Cape region of South Africa, were culled during the 19th century because their predation of the eggs and chicks of guano -producing seabirds was seen to threaten the livelihood of the guano collectors. The Birds of the Western Palearctic concise edition 2 volumes. Smithsonian Miscellaneous Collections. Bulletin of the American Museum of Natural History.