flightyfinch: whatthefauna: The bright red face of a uakari is thought to be an honest indicator of the monkey’s health, facilitating mate choice. The healthier and more parasite-free the individual, the brighter the face. Image credit: Robin Ryan
flightyfinch: whatthefauna: The bright red face of a uakari is thought to be an honest indicator of the monkey’s health, facilitating mate choice. The healthier and more parasite-free the individual, the brighter the face. Image credit: Robin Ryan
