When temperatures drop, so do the invasive green reptiles. Here’s everything you need to know about cold-stunned iguanas.

Removing trees deprives the forest of portions of its canopy, which blocks the sun’s rays during the day and retains heat at ...

From their odd appendages to their unsavory hygiene, certain animals suffer an image problem. But their awkward attributes can be their biggest advantages. Found across every continent except ...

A natural experiment in a national park in Patagonia shows how the return of a large predator can reshape an ecosystem.

North Atlantic right whales are in worse shape than their southern cousins, in part due to entanglement in fishing gear, a new study says.

Mating calls and rituals can be intercepted, or drowned out, by invasive species. Scientists are just starting to understand ...

Captive wild animal encounters are hugely popular, thanks partly to social media. But our investigation shows many creatures ...

Filmmaker Bertie Gregory's new documentary special captures the extreme challenges facing the world's fastest land animal. In his new documentary special, Bertie Gregory follows cheetahs during the ...

Although sharks aren’t the mindless man-eaters they are sometimes made out to be, experts know that staying safe involves skill, knowledge, and practice. Host Bertie Gregory filming a ragged tooth ...