One-horned rhinoceroses are the subject of a new study of the differences in appearance, behavior, and evolutionary history ...

Videos show narwhals using their tusks in several ways, including prodding and flipping a fish. It’s the first reported evidence of the whales playing.

Five lions were sprawled out and sunning on rocks alongside Kenya’s Voi River. Hippos wallowed nearby. Elephants drank and ...

Chicago has been named the “rattiest” city for 10 years running, according to pest control company Orkin, and efforts to ...