The big blue is the world's greatest wilderness – it's a vast marine desert where there is little to eat and nowhere to hide.

Beneath the ice of Antarctica, scientists discover a “fish city” with protected nests more than 950 feet deep.

Indeed, volunteers and scientists have noted that one of the places where walruses most often stop for long periods is ...

If you’ve gone on an African safari, chances are you’ve heard of the Big Five, the must-see list of iconic megafauna. The term, coined in the late 1800s during Africa’s colonial period, refers to what ...

As the world's largest bear, and largest land carnivore, polar bears are impressive mammals and are adapted to living in the ...