Baby hippos can be quite a handful. They are naturally rebellious and exhibit highly rambunctious behavior on a daily basis.

Mars, the baby hippo with a sassy attitude, has captured hearts worldwide and is drawing visitors from as far as Phoenix and ...

Mars, a pygmy hippo born at Tanganyika Wildlife Park, wants to take you along for a spa day and share some of his favorite tips.

A zoo in Grand Rapids, Michigan, recently welcomed the fourth baby pygmy hippo born in a U.S. zoo within the past year.

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

In a gender reveal party at the zoo in Grand Rapids, Michigan, proud Papa Jahari took center stage to help unveil his baby's ...

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.