Add Yahoo as a preferred source to see more of our stories on Google. Do hippos swim? Get to know more about the river horse's aquatic skills. The hippopotamus, commonly called "hippo," is the ...

The word "hippopotamus" was derived from the Greek language, in which "hippos" means horse and "potamos" refers to a "river or rushing water." These so-called "river horses" spend the majority of ...

Thanks to social media, people around the world have fallen in love with Fiona and Fritz at the Cincinnati Zoo and the adorable memes of baby Moo Deng. It’s easy to see why — baby hippos are ...

An adorable baby hippo at the zoo in Richmond recently got a name, Petunia, and video shows she’s practicing her swimming — a sign that she’s reaching her age-appropriate milestones. The pygmy hippo ...

Before Moo Deng became a viral sensation, baby Obi was making waves with his mom at the Melbourne Zoo in Australia. A YouTube video from Zoos Victoria shows the baby pygmy hippo taking its first swim ...

The hippopotamus, commonly called "hippo," is the third-largest living land animal. Male hippos can weigh up to 9,920 pounds while females weigh around 3,000 pounds, according to PBS." The animal's ...