A solitary killer whale, or orca, has been filmed hunting and killing a great white shark in an "astonishing" attack. Scientists said it was "unprecedented" and showed the exceptional predatory ...

Killer whales are apex predators ... They primarily eat seals but also hunt belugas, narwhals, whales, walrus, and occasionally fish. Leopard Seal – As one of Antarctic’s most ferocious ...

Fears for 'emaciated' humpback whale Most southerly sighting of UK's only killer whales Wally the walrus being disturbed ... whale can find enough food to eat. "It'll be a question of food sources ...

While the behavior isn't unheard of — orcas hunt everything from walruses and sea lions to ... but it may often be that the ...