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 baby pygmy hippo and internet sensation Moo Deng celebrated her first birthday on Thursday, devouring a massive tropical fruit platter alongside her mother as throngs of adoring fans turned up for her four-day party.