The two-month-old pygmy hippo has become a viral internet sensation and a popular tourist attraction. Moo Deng was born in July at the Khao Kheow Open Zoo in Thailand, but she already has thousands of new admirers clamoring to catch a glimpse of her tiny round face and chubby, pink cheeks.

Only a month after Thailand's adorable baby hippo Moo Deng was unveiled on Facebook, her fame became unstoppable both domestically and internationally. Zookeeper Atthapon Nundee has been posting cute moments of the animals in his care for about five years.

Moo Deng, a viral pygmy hippo, has become an internet sensation, but zoo officials are worried about her safety.