siamang (symphalangus syndactylus)

agile altitude animal ape apes arboreal arms beauty black climb cute dark endangered fauna forest fur furred furry gibbon grasping gripping holding hylobatidae jungle lesser malaysia mammal mammalia monkey natural nature one overground primate primates ropes scramble shrouds siamang social sumatra swinging symphalangus syndactylus tailless thailand theme threatened tree trees wild wildlife young zoology