When the total solar eclipse happens on Monday, animals at homes, farms and zoos may act strangely. Researchers can’t wait to see what happens when day quickly turns to night. By Juliet Macur and ...

At the National Zoo, the new pandas, still too young for romance, have nevertheless given welcome indications that they are interested in each other, staff members say. The female bleated at the male, ...

Talk about a jungle joyride -- two gorillas went completely bananas for each other, tossing modesty into the bushes, and getting busy in broad daylight ... giving stunned onlookers a surprise mating ...

The National Zoo generally is a family-friendly place, but at the Woo at the Zoo event Friday night, it was all about wild animal sexual behavior. “We like to say we’re a free zoo where animals can ...

When I met Nikita, the majestic, golden-eyed female Amur tiger at the National Zoo in D.C., she might have been pregnant. (We should know any day now; her cubs would be due in June.) But she had never ...