Mahali, the Denver Zoo’s beloved Nile hippopotamus, will stay in the Mile High City a little longer than expected. 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 ...

Hippo mama Bibi gave birth six weeks early Jan. 24, 2017, to the first Nile hippo born at the Cincinnati Zoo & Botanical Garden in 75 years. No one could've imagined what a stir this underdeveloped, ...