orange monkey northern white-cheeked gibbon nomascus leucogenys, hand with long fingers before face, vietnam

animal ape asia asian background before biped borneo brown captive captivity cheeked cute dark endangered expression face fauna female finger fingers forest gibbon golden grass hand handed hanging hominid indonesia jungle laos lar leucogenys long looking mammal monkey mouth nature nomascus northern one orange portrait primate primitive simian standing thailand thoughtful tree vietnam white wild wildlife with zoo