Whale sharks are the largest fish on the planet; the average whale shark is between 18 and 40 feet long, though the Georgia ...

Large numbers of endangered whale sharks have been sighted in waters off Madagascar. The first major scientific survey in the area shows there are far more of the huge fish than previously thought.

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 ...