Proboscis Monkey (Nasalis larvatus)

The Proboscis Monkey, native to Borneo's mangrove forests, is instantly recognizable by the male's enormous, pendulous nose. This distinctive feature amplifies vocalizations and may serve as a signal of health and status. With webbed feet for swimming and a pot-bellied appearance, this unusual primate is both an adept swimmer and a uniquely charismatic—if odd—symbol of its ecosystem.