Young tegus are emerald green with black markings and a tail that has yellow and black bands. Over several months and after ...

Many huge animals went extinct surprisingly recently. When they died, their ecological role was lost with them.

Newly published research shows that the masked shrew, a small, mole-like mammal found in the Appalachian Mountains, shrinks its body and braincase to conserve energy during winter months.

Meet one of Africa’s most dangerous vipers, known not only for its deadly venom but also for having some of the longest fangs of any snake on Earth. In this video, we take a closer look at this ...