The star of the show was Mars, a 6-week-old pygmy hippo, one of only 3,000 remaining in the wild. The viral video showed the ...

David Muir has the story of the 5-week-old pygmy hippo who refused to leave the pool on a hot summer day, until his mother ...

Pygmy hippos Iris and her calf, Poppy, cool off under a water hose spray at Metro Richmond Zoo in Moseley, Virginia. (Credit: ...

Pygmy hippo Mars didn’t listen to the zoo caretaker when play time in the pool was over, so his mom, Posie, had to step in.

Tanganyika Wildlife Park’s new baby pygmy hippo, Mars, made his public debut Tuesday afternoon.

Zoo Miami’s beloved pygmy hippopotamus, Aubergine, got some extra care this week after showing signs of lethargy and a drop in appetite. Born at the zoo in August 2018, Aubergine has faced big ...

Is anything cuter than a baby hippo? Fans of Thailand’s Khoa Kheow Open Zoo don’t think so. The zoo recently held a four-day festival dedicated to their most famous resident: a pygmy hippo ...

A male pygmy hippo – the same species as Thailand's viral Moo Deng – was born at Tanganyika Wildlife Park in Goddard, Kansas on June 26.