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

Contender, a male great white shark measuring nearly 14 feet long, is the largest ever tagged and studied among the Northwest Atlantic white shark population, according to researchers.

When Philip Sontag first visited Antarctica as a Ph.D. student, he brought back an unusual souvenir: a huge bag of penguin ...

Picture an Antarctic animal and most people think of penguins, but there is a flightless midge, the only known insect native ...