Before Moo Deng became a viral sensation, baby Obi was making waves with his mom at the Melbourne Zoo in Australia. A YouTube video from Zoos Victoria shows the baby pygmy hippo taking its first swim ...

The Edinburgh Zoo launched a cuteness contest between Haggis, its newborn pygmy hippo, and Moo Deng, the adorable mini hippopotamus that became a viral sensation at a Thailand zoo this summer.

A birthday bash fit for a queen — or at least a very cute hippo. Moo Deng, a pygmy hippopotamus born at Thailand’s Khao Kheow Open Zoo, turned one this week, and fans from around the world tuned in ...

It's nearly impossible to escape the influence of 3-month-old baby hippo Moo Deng. Over the span of a week, Moo Deng drew in millions of online admirers. The charismatic animal, whose name means ...