Ravenous baby hippo Moo Deng munched on a tissue that was dropped into her enclosure by a monkey.

Worried visitors spotted the adorable four-year-old pygmy hippo eating the foreign item at Khao Kheow Open Zoo in Chonburi, Thailand, on December 9.

Concerning footage shows the water horse sniffing and biting the piece of sanitary paper.

Zoogoers initially speculated that a careless tourist had thrown the tissue into Moo Deng's enclosure. However, after reviewing security footage, zoo staff discovered that the true culprit was a mischievous primate from the nearby area.

The zoo management has since reminded visitors to dispose of trash properly in designated areas to prevent future incidents and ensure the safety of their beloved animals.

Moo Deng was born on July 20, 2024, to her parents Tony and Jonah and was named Moo Deng, which means bouncy pig, through a public poll, with more than 20,000 people voting.

She drew crowds to the zoo after gaining popularity in September 2024 as a popular internet meme, following trending images of her emerging online.

Her fame surged when the zoo posted pictures of her on its Facebook page, showcasing her in funny gestures.

Due to her popularity, the number of daily visitors to the zoo doubled in early September.
The Zoological Park Organization of Thailand reported that the number of tourists visiting reached 159,743, a significant increase from August's total of 98,046.

The pygmy hippopotamus is listed as an endangered species on the IUCN Red List and is classified under Appendix II of CITES.

Pygmy hippos are small hippopotamids native to the forests and swamps of West Africa, primarily in Liberia, with small populations in Sierra Leone, Guinea, and Ivory Coast.