Pictures : Gelada Baboon and Black-and-white Colobus Monkey in Ethiopia.
Gelada (Theropithecus gelada), also known as the gelada baboon, in Ethiopia.
The gelada is a species of primates found in the Simen Mountain National Park in the remote Ethiopian Highlands. It is a robust, non-aggressive primate that does not climb trees. Unlike most monkeys, the gelada is a grass-eater. It is the world's most terrestrial non-human primate, spending much of its time plucking and munching on grasses. At night, they disappear over the edges of cliffs to sleep on tiny ledges, safe from leopards and hyenas.
The gelada lives in small family units composed of one dominant male, a few females and their young. Though males are larger than females, the females of the group together may have power over the dominant male and opt for supporting a rival, if any. The family units form large herds of as many as 600 members and even more. Geladas are very social and have one of the most varied vocal repertoires of all the primates.
Black-and-white Colobus (Colobus guereza) Monkey in Ethiopia.
The colobus monkey is native to Africa and lives in all types of closed forests. It is the most arboreal of all African monkeys and rarely descends to the ground. They may occupy niches that are inaccessible to other primates since complex stomachs enable them to digest mature or toxic foliage that other primates cannot. The colobus monkey eats leaves, fruit, flowers, and twigs. It obtains much of its water from the food it eats.
Colobuses live in territorial groups of about 5 to 10 animals—a dominant male, several females, and their young. Each group has its own territory and will defend it from other groups. It is a diurnal species.
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find here more pictures of the wildlife photographer marie-france grenouillet, including great pictures from the fauna (mammals, birds, reptiles, and geladas), people and lanscape in ethiopia and other countries.