thomas langurs closeup sitting on a branch with its tail hanging down bohorok, indonesia

animal archipelago asia barisan biodiversity bohorok borneo bornese branch cercopithecidae climate closeup coastal deforestation down ecoregions ecosystem ecosystems energy environmental equator flexible force greater hanging humanoid indonesia indonesian islands jungle langur langurs leaf malay mammal medan monkey movement muzzle natural oceania presbytis primate problems rainforest sinabung sitting southeast strength strong sumatra sunda tail thomas thomasi thomass tourism trees tropical varuna