A mother southern pig-tailed macaque perched on tree branch while her baby clings upside down to her underside against a backdrop of dense green forest foliage, close up shot

macaque southern pigtailed pig tail tailed monkey macaca nemestrina animal species southeast asia baby feed mother mum breed sundaland sunda malaysia perak thailand indonesia berok primate endangered conservation newborn behaviour nature natural habitat wild wildlife tree climb perch branch forest jungle maternal care canopy woodland tropical mammal ecosystem cling environment