The Khao Kheow Open Zoo was overrun with Moo Deng fans on the first of four days of activities marking the hippo’s birthday.

Thousands of fans gathered at Thailand's Khao Kheow Open Zoo Thursday to celebrate the first birthday of Moo Deng, the viral baby pygmy hippopotamus.

Jenna Bush Hager made a bold declaration live on Today that had fans saying "TMI." On Thursday, July 10, the former first daughter's response during a segment about the viral pygmy hippo, Moo Deng ...

Tanganyika Wildlife Park recently welcomed a new addition to its family, enhancing the pygmy hippopotamus population.

Thousands of fans have flocked to a Thailand zoo to celebrate the first birthday of Moo Deng, the baby pygmy hippo that's ...

Moo Deng, the viral pygmy baby hippo, has turned 1! The social media sensation celebrated her first birthday on Thursday, ...

Moo Deng, the pygmy hippo who took the internet by storm, celebrated her first birthday Thursday at the Khao Kheow Open Zoo ...

Moo Deng, the pygmy hippo, celebrated her first birthday. Thousands gathered at Khao Kheow Open Zoo in Thailand. Fans came ...

Moo Deng, the world’s favorite pygmy hippo, just turned 1, and thousands of fans from across the globe traveled to Thailand ...