Hannah Shirley, we salute you. How does a pygmy hippo celebrate her birthday? With a watermelon treat and party decorations, of course. The charming Hannah Shirley is the world’s oldest pygmy ...

BOSTON - Moo Deng is social media's newest darling. The baby pygmy hippo first captured the hearts of gawkers at her zoo in Thailand, and then she devoured the world wide web faster than a head of ...

The hippopotamus, also known as a hippo, is a massive amphibious mammal that spends most of its time near "lakes, pools, mudholes, or in the preferred moving waters of rivers," according to the San ...

Once upon a time Hippo and Fire were good friends. They visited and helped each other every day. One day, Hippo invited Fire to attend a party. Fire was happy to be invited and waited anxiously for ...

Hippos lived in Europe alongside mammoths and woolly rhinos during the last Ice Age, according to new research. Detailed analysis of bone finds shows that the heat-loving semi-aquatic mammals ...