Sitting on the grass while eating, turns to look back and continues its business

northern pigtailed macaque macaque macaca macaca leonina old world monkey primate khao yai national park monkey simiiformes primates vulnerable species foraging wildlife cercopithecidae mammals foraging animals habitat monkeys apes conservation sitting grass feeding bear frugivorous haplorhini vulnerable eating troop digging tropical animals nature vegetation salt lick daytime thailand nutrients world heritage jungle unesco green forest jungle ambience summer rainforest hot insects tropical forest trees