Mark Carwardine / Aye-aye (Daubentonia madagascariensis) captive, from Madagascar, Endangerd species, Bristol Zoo

Pete Oxford / Guatemalan / Yucatan black howler monkey (Alouatta pigra) mother with her own baby and also carrying a baby from second female, Community Baboon Center, Belize. Endangerd species

Tim Laman / Adult male Bornean orangutan (Pongo pygmaeus) known as Rocky, in "past-prime" condition, having lost his big cheek pads. Gunung Palung National Park, Borneo, West Kalimantan, Indonesia, Endangerd spec...