Primates have always fascinated humans for their intelligence, expressiveness, and closeness to our own species. From the tree canopies of Madagascar to the misty mountains of China, these creatures embody the diversity and wonder of the natural world. But as deforestation, poaching, and climate change tighten their grip, many of these primates now teeter on the edge of extinction. For travelers and wildlife enthusiasts, seeing them in their natural habitats has become a race against time. Here are ten rare primates you should witness in the wild before they disappear forever.