Black-and-white colobus monkeys are among the most frequently spotted species. The name “colobus” means “mutilated” in Greek, unlike other primates, they are lack thumbs. The troops of 5-10 individuals are easily seen in the branches as a result of their striking coloring black with long white hair running from the shoulders to rump, and white tufts at the ends of their long tails. Infants are born pure white. The dog-like baboons live in large groups and are regularly seen along roadsides where they wait to ambush cars in search of food. They spend more time on the ground than most other primate species, but sleep in trees at night. If water is scarce, they can survive for long periods by licking the dew from their fur.