The usually active little one just wanted a nap!

'The athleticism is peak', said one of the little hippo's fans.

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 ...

Baby hippos, also known as calves, are adorable and exhibit fascinating behaviors, including yawning. When baby hippos yawn, ...

A cute baby hippo found itself spinning its wheels on a slippery rock while trying to keep up with a herd of hippos in Serengeti National Park in Tanzania. Field safari guide and wildlife photographer ...

This little guy is beating the heat in the cutest way possible! Check out Obi, a 3-week-old pygmy hippo calf, splashing around with his mom at the Melbourne Zoo in Australia. Tap to see video if ...

An adorable baby pygmy hippo named Mars is keeping zookeepers on their toes at Tanganyika Wildlife Park in Goddard, Kansas, and watching the chaos that follows him around everywhere is pure joy! In ...

Remember Thailand's viral baby pygmy hippo, Moo Deng? She was born this past summer. Her slick body and photogenic face made the miniature moist mammals a fan favorite. Now America has its own baby ...

This little guy is beating the heat in the cutest way possible! Check out Obi, a 3-week-old pygmy hippo calf, splashing around with his mom at the Melbourne Zoo in Australia. Tap to see video if ...