“New” Killer Whale Types at Risk From Antarctic Warming

Publication: National Geographic News   Date: August 4, 2008   View Article

Two newly identified types of killer whales that hunt prey off of Antarctic sea ice risk losing food sources to global warming and melting, according to a new study on the whales’ movement patterns.

The study reveals that killer whales that feed primarily on fish that congregate under ice shelves are more or less “homebodies,” sticking close to the ice, whereas seal-eating killer whales wander wide and seemingly aimlessly.

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