Fauna of the Crozet Islands: Killer Whale, Macaroni Penguin, King Penguin, Southern Elephant Seal, Wandering Albatross, Patagonian Toothfish Source Wikipedia

ISBN: 9781233101436

Published: August 19th 2011

Paperback

26 pages


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Fauna of the Crozet Islands: Killer Whale, Macaroni Penguin, King Penguin, Southern Elephant Seal, Wandering Albatross, Patagonian Toothfish  by  Source Wikipedia

Fauna of the Crozet Islands: Killer Whale, Macaroni Penguin, King Penguin, Southern Elephant Seal, Wandering Albatross, Patagonian Toothfish by Source Wikipedia
August 19th 2011 | Paperback | PDF, EPUB, FB2, DjVu, audiobook, mp3, RTF | 26 pages | ISBN: 9781233101436 | 4.61 Mb

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 24. Chapters: Killer whale, Macaroni Penguin, King Penguin, Southern Elephant Seal, Wandering Albatross, Patagonian toothfish, Blue Petrel, Gentoo Penguin, Black-faced Sheathbill, Eastern Rockhopper Penguin. Excerpt: The killer whale (Orcinus orca), commonly referred to as the orca, and less commonly as the blackfish, is a toothed whale belonging to the oceanic dolphin family.

Killer whales are found in all oceans, from the frigid Arctic and Antarctic regions to tropical seas. Killer whales as a species have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as sea lions, seals, walruses and even large whales.

Killer whales are regarded as apex predators, lacking natural predators and preying on even large sharks. Killer whales are highly social- some populations are composed of matrilineal family groups which are the most stable of any animal species.

Their sophisticated hunting techniques and vocal behaviors, which are often specific to a particular group and passed across generations, have been described as manifestations of culture. The IUCN currently assesses the orcas conservation status as data deficient because of the likelihood that one or more killer whale types are separate species. Some local populations are considered threatened or endangered due to prey depletion, habitat loss, pollution (by PCBs), capture for marine mammal parks, and conflicts with fisheries.

In late 2005, the killer whales known as the southern resident killer whales were placed on the U.S. Endangered Species list. Wild killer whales are not considered a threat to humans, although there have been cases of captives killing or injuring their handlers at marine theme parks. Killer whales feature strongly in the mythologies of indigenous ...



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