In a viral video shared by the zoo, they demonstrate the best way to cure the hippo's mischief: calling his mother.

Baby hippo Mars refuses to leave the pool, making a Kansas zoo go viral. Find out why this gem is now a must-visit destination.

GRAND RAPIDS, MI - A female pygmy hippo named Penelope has given birth to a “little splash of joy,” marking the first calf ...

Fiona the hippo at the Cincinnati Zoo has been written up in the New York Times and her own show. Mars, a pigmy hippo in ...

CHONBURI, Thailand — Thousands of excited fans flocked to a Thai zoo on Thursday to celebrate the first birthday of Moo Deng, the adorable baby pygmy hippo that has become a social media sensation.

Thousands of excited fans flocked to a Thai zoo on Thursday to celebrate the first birthday of Moo Deng, the adorable baby pygmy hippo that has become a social media sensation. The Khao Kheow Open Zoo ...

CHONBURI, Thailand (AP) — Thousands of excited fans flocked to a Thai zoo on Thursday to celebrate the first birthday of Moo Deng, the adorable baby pygmy hippo that has become a social media ...