What animal is in the picture?

Chevrotains, also known as mouse-deer, are small ungulates that make up the family Tragulidae, the only extant members of the infraorder Tragulina. The 10 extant species are placed in three genera, but several species also are known only from fossils.

The extant species are found in forests in South and Southeast Asia, with a single species in the rainforests of Central and West Africa. They are solitary or live in pairs, and feed almost exclusively on plant material.

Chevrotains are the smallest hoofed mammals in the world. The Asian species weigh between 0.7 and 8.0 kg (1.5 and 17.6 lb), while the African chevrotain is considerably larger at 7–16 kg (15–35 lb).

In November 2019, conservation scientists announced that they had photographed silver-backed chevrotains (Tragulus versicolor) in a Vietnamese forest for the first time since the last confirmed sightings in 1990.