Wild dusky leaf monkey or spectacled langur spotted perched on tree branch, sheltered beneath lush green canopy in the forest, displaying the symptom of asthma

dusky leaf monkey trachypithecus obscurus spectacled langur primate species cercopithecidae singapore malaysia myanmar thailand tree animal wild wildlife natural habitat langkawi tropical forest jungle endangered conservation island white eye rainforest park zoo fur national face canopy branch shelter sit green look asthma perch breathe respiratory lutung bali borneo southeast asia nature