Animals that are higher up the food chain, such as penguins, are especially vulnerable to changes in the environment.

Longer summers are allowing more king penguin chicks to bulk up and survive the winter, but the penguins' main fishing area is shifting further away as temperatures rise ...

King penguins are adapting to climate change in a way that seems to help them breed successfully, which is unusual.

Arctic sea ice is headed for one of its smallest winter peaks on record, an AFP review of US data showed Wednesday, as climate change shrinks the region's frozen cover ...