The eastern black-and-white colobus or mantled guereza monkey (Colobus guereza caudatus) on Mount Meru, Arusha National Park, Tanzania, East Africa. The mantled guereza is a black-and-white monkey of the Old World, native to much of west central and east Africa. The Kilimanjaro guereza subspecies (C. g. caudatus) is found in the forests surrounding Mount Meru and Mount Kilimanjaro. Active during daylight hours, this monkey lives in trees in social groups of three to fifteen, in both deciduous and evergreen forests. Known for their whooping dawn chorus, the roar of the males communicates over long distances and reinforces territorial boundaries. The species can adapt to habitat disturbance and prefers secondary forest close to rivers or lakes. This monkey eats leaves, seeds, fruits, and arthropods. It is hunted by birds of prey, the common chimpanzee, leopards, and humans wanting its bushmeat or skin. A mantle of long white fringes of hair runs along each side of its black trunk. Its face is framed with white hair and it has a large white tail tuft. Mount Meru is a dormant stratovolcano in Arusha National Park, in the southeast Arusha Region, Tanzania, East Africa. At a height of 4,562 meters (14,968 ft), it is the fifth-highest mountain of Africa. It's the second-highest mountain in Tanzania, after Mount Kilimanjaro (which is visible 70 kilometres or 43 mi to the east). We climbed Mount Meru via the Momella route, starting at Momella gate on the eastern flank. Much of the mountain's height was lost about 7,800 years ago due to a summit collapse. Mount Meru's caldera is 2.2 miles (3.5 km) wide and most recently had a minor eruption in 1910. The movie Hatari! was filmed at the foot of Mount Meru.
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