Scientists track Antarctic krill via satellite to monitor ocean health amid climate change and fishing threats.

Krill are just a few centimetres long fully grown, but are one of the most abundant animals on Earth Scientists say subtle ...

At the other end of the Earth, around the South Pole, emperor penguins are also facing enormous threats from climate change, which causes profound changes in the Antarctic ecosystem and hurts penguins ...

Blue whales are not only the biggest mammal on Earth, but also the loudest ... and beaks that are mostly red or orange make the gentoo penguin distinguishable from other penguin species.