Leopards and jaguars are two big cats that look a lot alike, but when you know what to look for, you’ll be able to tell them apart.

An international team of scientists spent three months at sea drilling into a huge, mysterious reservoir of freshwater under the salty ocean. They hope it could help tackle an increasingly severe ...

In Brazil, a jaguar swam the longest distance ever recorded for its species, proving even big cats can adapt to new aquatic challenges.

Endangered animals include blue whales, giant pandas, tigers, rhinos, and of course a lot of primates. Though endangered ...