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

Thousands of fans have flocked to Thailand's Khao Kheow Open Zoo to celebrate the first birthday of Moo Deng, the baby pygmy hippo that has become a social media sensation.

Thailand's pygmy hippo internet sensation Moo Deng marked her first birthday on Thursday, drawing crowds of diehard fans.