Most drought-resistant monkey

The most arid environment inhabited by a non-human primate species is the lower region of the Kuiseb River Canyon in the heart of Nambia's Nambi Desert, where a troop of 15 chacma baboons Papio ursinus was found living in 1986 by Conrad Brain of the Desert Ecological Research Unit of Namibia. In the area that they were inhabiting, daytime temperatures reach 45°C and there is no surface water for around eight months of every year. Studies of this baboon troop revealed that during the last months of 1992, the monkeys were unable to drink for 116 days, obtaining their only liquid intake from moisture from some wild figs until the long-awaited rains finally arrived, whereupon they drank almost continuously until fully rehydrated.

The Namib Desert only receives an annual rainfall of around 27 mm.