Rhinopithecus bieti, also known affectionately by locals as the golden hair monkey, is a primate found in the southern Chinese province of Yunnan. The loss of their habitats has forced these primates to adapt to extreme altitudes with below-freezing temperatures and extremely thin air. As a result, these monkeys have developed unique facial features: vibrant pink lips and the absence of nasal bones, resulting in their “snub-nosed” moniker. They are also considered endangered. As Tim Flach, photographer and President of the Association of Photographers, puts it, they look like they’ve had cosmetic surgery. Photographing these monkeys was not easy. Flach...