The Pileated Gibbon, which means "capped" referring to the black cap, is native to small parts of Thailand, Laos and Cambodia.
The adult male (above) has black fur except for the white borders on his face, his head circle and hands/feet.
The adult female (above) has grey or buff fur with a black front and face and sometimes white/buff eyebrows.
Juveniles are grey-buff until males mature.
They are monogamous and, like other gibbons, a pair will duet to declare bond and territory.
They are endangered by habitat loss for farming, hunting for meat and wildlife smuggling.