Protecting the cuddly bear is expensive, but worth it.

A clever new study shows that blue whales lean on their memory to guide their epic migrations.

Much of Australia has been enduring a string of record-breaking and dangerous heat waves since December.

Chimpanzees, birds, and even rats have shown signs of reviewing their own past to prepare for the future.

Jellyfish, plankton, and even sharks rise from the deep. Scientists aren’t exactly sure why.

Domesticating horses changed humanity forever. Where and when did it first happen?