Ponginae is a subfamily in the hominidae family. Once a diverse lineage of Eurasian apes, it is now represented by two species of orangutans, the Sumatran orangutan (Pongo abelii), and the Bornean orangutan (Pongo pygmaeus). The Sumatran orangutan is now listed as critically endangered by the IUCN and the Bornean orangutan is listed as endangered.