Old World monkeys are found in Africa and Asia. Some examples are guenons, mangabeys, macaques, baboons, and colobus monkeys. Some examples are woolly monkeys, spider monkeys, howler monkeys, capuchin monkeys, and squirrel monkeys. Marmosets and tamarins also live in New World habitats but are different enough to be in their own different scientific grouping. Noses: Most Old World monkeys have small curved nostrils set close together. Most New World monkeys have round nostrils set far apart.
Cheek pouches: Macaques and some of the other Old World monkeys have cheek pouches, where food is stuffed on the run, so it can be chewed later. Rump pads: Some Old World monkeys, such as drills, have sitting pads on their rumps, but New World monkeys do not. Tails: Some New World monkeys, such as spider monkeys, have prehensile tails, but Old World monkeys do not. And one Old World monkey, the Barbary macaque, has no tail at all!
Most monkeys live in the tropical rainforests of Asia, Africa, and Central and South America, or the savannas of Africa. Geladas and golden monkeys are mountain dwellers, and Japanese macaques live in parts of Japan where it snows; these are the monkeys you may have seen on TV that find hot springs and spend a lot of time in the winter sitting in the warm water—kind of like a macaque Jacuzzi!
Baboons live in savannas, open wooded areas, and rocky hillsides; although they are able to climb trees, they spend most of their time on the ground.
Many monkeys are known for their tree-swinging leaps that put human acrobats to shame! Colobus monkeys, unlike other monkeys, have hind legs that are much longer than their forelimbs, making for incredible leaping ability with great speed.
Monkey feet are as flexible as their hands, which also help them travel through small branches high up in the rainforest canopy. Monkeys play an important role in their native habitats by pollinating flowers and dispersing seeds as they travel. Some monkeys can swim; their webbed toes help them paddle through the water, and they may swim across a stream or river to avoid predators or get to food.
Night or owl monkeys are strictly nocturnal, using their enormous eyes to see well in the dark. They communicate with one another through scents and calls, including a series of grunts that resonate in the forest. Old World monkeys fill up their large cheek pouches with fruits, leaves, and insects as they forage during the day, stopping to chew and swallow their food when they find a safe spot to rest.
Baboons are also known to eat meat when they can catch it, including young antelope, rabbits, and birds like guinea fowl.
Leaves are the food of choice for some kinds of monkeys. Colobus monkeys and langurs have chambered stomachs that carry bacteria that help ferment and digest leaves.
Geladas prefer to graze on grass! Groups of monkeys, called troops, travel together by day to find food. A troop can number from a few individuals to a thousand or more. Within huge troops, monkeys form smaller groups, called harems, which include an adult male, several adult females, and their offspring. Unattached adult males, called bachelors, sometimes form their own group.
To keep family bonds, monkeys engage in daily mutual grooming. One exception to social living is the gray titi monkey, native to the tropical forests of Bolivia. These small monkeys, which only weigh about 2 pounds 0. Some kinds of monkeys give birth to babies that are a completely different color from the parents. For example, adult colobus have black hair, but a newborn is white; langur babies are orange while their parents are black.
Diet: Omnivore. Group Name: Troop. Size: 14 to 26 inches. Weight: Size relative to a 6-ft man:. This photo was submitted to Your Shot, our photo community on Instagram.
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