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 ...

Sea Lion – Their only natural predators are killer whales and sharks, placing them among the ocean's top hunters. As opportunistic feeders, they eat a wide range of fish, squid, octopus, and smaller ...

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 ...