Sitting on the top branches of a tree, the white-handed gibbon is looking down and observing its surroundings, inside Khao Yai National Park, Thailand

whitehanded gibbon lar gibbon hylobates lar endangered primate mammal animal national park khao yai thailand asia southeast asia tropical wildlife nature natural habitat brachiators sandy fur black dark brown hanging swinging tail ischial callosities lowalnds dipterocarp allopatric frugivorous diurnal arboreal polyandrous trees branches twigs green brown leaves trunk eating fruits legs hands