Orangutan

Orangutans are Great Apes native to Borneo and Sumatra (one species each) in Southeast Asia.

Habitat
Wild orangutans live exclusively in the canopy, not on the ground.

Flouting social/solitary distinction
While orangutans traditionally live solitary lives, some orangutans at feeding platforms have spontaneously formed social groups. This goes contrary to the traditional belief in innateness of primate sociality.