A solitary killer whale ... the shark populations in the areas. The scientists do not know what is driving the behaviour, but Dr Towner told BBC News that it was becoming evident that "human ...

Whale sharks have to eat a lot to sustain their large bodies ... Whale sharks face major pressures from human activity. Like other sharks, they have been targeted for their meat and fins. For example, ...

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 ...