What a face!
A Sumatran orangutan (Pongo abelii) makes a face. Listed as Critically Endangered the Sumatran orangutan is largely threatened by habitat loss to plantations, such as wood pulp and palm oil, and logging. After losing their forests, many orangutans, such as this one, are now housed in rehabilitation centers. Photo by: Rhett A. Butler.
Click to see more photos of orangutans.