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

Moo Deng, Thailand’s baby pygmy hippo from that inspired a Saturday Night Live character and thousands of memes, has begun her four-day birthday celebration at Khao Kheow Open Zoo.

Thousands gathered at Khao Kheow Open Zoo to celebrate Moo Deng, a baby pygmy hippo and social media phenomenon, on her first birthday. The zoo organized four days of festivities, attracting international fans and raising funds for animal conservation.