Northern Pig-tailed Macaque, Macaca leonina seen grooming and pulling pest from the butt of its child in Khao Yai National Park during the afternoon, Thailand

northern pigtailed macaque primates macaque macaca macaca leonina monkeys primate old world monkey monkey grooming khao yai national park apes mammals feeding foraging wildlife vulnerable species tropical animals conservation cambodia simiiformes animals bangladesh mother cercopithecidae child troop frugivorous behavior sitting thailand haplorhini world heritage nature jungle unesco habitat grass afternoon vulnerable green jungle ambience tropical forest vegetation rainforest forest hot china summer