The animals have not been used as test subjects since 2015, when the NIH retired chimpanzees from invasive research.

Police say the female Rhesus macaque primates weighing about 7 pounds escaped Wednesday when a new employee didn't fully shut an enclosure.

The hippo house has been temporarily closed “so that our expert keepers can keep a close eye on mum and baby at this ...

Edinburgh Zoo welcomes Haggis, an adorable pygmy hippo calf, joining the ranks of online stars like Thailand's Moo Deng.

Did you know the word "hippopotamus" comes from the ancient Greek for "river horse"? But don't let that fool you; this big, lumbering mammal is anything but a horse. In fact, it's one of the most ...

She eventually settled into her home and, 18 months later, gave birth to a calf, which was believed to be the first ... named ...

LOS ANGELES (KTLA) – The Dodgers’ World Series success so far has lifted spirits across Los Angeles, but perhaps none more than for a mother and daughter duo who are both battling cancer. One month ...

PORTLAND, Ore. — Move over, Fat Bear Week. A bat beauty contest is stepping up to the plate. The Bureau of Land Management hosted the online competition since 2019 to raise awareness about the ...