Adoring fans from around the world converged in Thailand this week to celebrate the first birthday of Moo Deng, the baby pygmy hippo who became a social media sensation. John Yang reports.

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

Tanganyika Wildlife Park in Kansas welcomed a new baby pygmy hippo. The boy might just become a new internet celebrity.

A male pygmy hippo – the same species as Thailand's viral Moo Deng – was born at Tanganyika Wildlife Park in Goddard, Kansas ...

A zoo in the U.S. state of Kansas has welcomed the birth of a healthy baby pygmy hippopotamus, raising hope for a species ...

Posie and Pluto welcomed a healthy baby boy weighing in at 13 pounds. Tanganyika says that Posie is already proving to be a great mother.