Bornean Orangutan (Pongo pygmaeus)
Bornean orangutans thrive primarily in Southeast Asia's forest habitats. Found on the island of Borneo, they prefer living in swampy, hilly, and old-growth rainforests. Their environment varies significantly, from lowland swamps to dipterocarp forests.
Sumatran Orangutan (Pongo abelii)
Sumatran orangutans reside in lowland forests, swamps, and mangroves of Indonesia's Sumatran island. Heavy logging has isolated them in fragmented forests.
Tapanuli orangutan (Pongo tapanuliensis)
The Tapanuli orangutan holds residence in South Tapanuli on Sumatra, Indonesia's island. This group was recognized as a distinct species in 2017, thanks to a thorough phylogenetic study analyzing genetic samples and comparing the genomes of orangutans across Sumatra and Borneo2.