A zebra that's become a familiar sight in Placer County was on the loose again Monday, but animal services say the situation ...

Stunning images captured in Finland show male black grouse competing in their annual mating ritual. Photographer Andy Rouse documented the birds strutting, prancing and fighting at a communal lek to ...

In the animal kingdom, relationships are often driven by survival and the chance to pass on their DNA. However, some species ...

Before Lincoln Park Zoo's Kapuki had her rhino calf, matchmakers had to find a father. The male, brought in from Ohio, called ...

The hectocotylus is both a reproductive organ and a sensory organ, a rare combination in animals, new research suggests ...