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.

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

Totally unfazed that it was her birthday, she wandered around her enclosure, took a few naps and chewed her caretaker’s knees ...

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 ...

Thailand’s Khao Kheow Open Zoo celebrated the first birthday of its beloved baby pygmy hippo, Moo Deng, who’s captured hearts ...

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, ...

A Ramona Wildlife Center pygmy hippo that was rescued more than two decades ago broke a world record this weekend by becoming the oldest living captive pygmy hippo in recorded history, San Diego ...

A Ramona Wildlife Center pygmy hippo that was rescued more than two decades ago broke a world record this weekend by becoming the oldest living captive pygmy hippo in recorded history, San Diego ...

Poppy, the pygmy hippo of Metro Richmond Zoo, has taken her first steps outside in time for Pygmy Hippo Day.