Mars (born June 26, 2025) is a male pygmy hippopotamus (Choeropsis liberiensis). He was the fifth pygmy hippo calf born at Tanganyika Wildlife Park in Goddard, Kansas, United States.
Tanganyika Wildlife Park announced that a male pygmy hippopotamus calf was born there on June 26, 2025. He was the fifth calf born to adults Posie (dam) and Pluto (sire).
A clip shared in August 2025 showed Mars being coaxed and pushed out of the pool by a keeper and also Mars lingering in a pool until his mother intervened with a look, which ABC described as a âÂÂuniversal âÂÂmom stareâÂÂ.â The segment ran on World News Tonight with David Muir. National Geographic profiled Marsâ rise alongside broader context about pygmy hippo popularity on social media following the Thai calf Moo Deng.