World's largest king penguin colony has declined by 90%

Number of king penguins on the remote ile aux Cochons has fallen from 2m to 200,000, warn scientists

The planet's largest colony of king penguins has declined by nearly 90% in three decades, researchers have warned.

The last time scientists set foot on France's remote ile aux Cochons - roughly half way between the tip of Africa and Antarctica - the island was blanketed by 2m of the penguins, which stand about a metre tall.