Squirrel monkeys are weaned by 4 months of age, while other species are not fully weaned until 18 months old. The mothers exclusively care for the young. Females give birth to young during the rainy season, after a 150 – 170 day gestation period. The mating of the squirrel monkeys is subject to seasonal influences. Occasionally they also eat nuts, buds, eggs and small vertebrates. Squirrel monkeys are omnivores, eating primarily fruits and insects.
#Squirrel monkey skin
For marking territory, squirrel monkeys rub their tail and their skin with their own urine. Squirrel monkeys small body size also makes them susceptible to predators such as snakes and big cats. These monkeys have a number of vocal calls, including warning sounds to protect themselves from large falcons, which are a natural threat to them. These large groups can, however, occasionally break into smaller troops. Squirrel monkeys live together in multi-male/multi-female groups with up to 500 individuals. Their movements in the branches are extremely fast. Unlike the other New World monkeys, their tail is not used for climbing, but as a kind of ‘balancing pole’ and also as a tool. Like most of their New World monkey relatives, squirrel monkeys are diurnal and arboreal. Female squirrel monkeys have a pseudo-penis that they use to display dominance over smaller monkeys, much like the way the male squirrel monkeys display their dominance. Remarkably, the brain mass to body mass ratio for squirrel monkeys is 1:17 which gives them the largest brain, proportionately, of all the primates. Squirrel monkeys weigh 750 to 1100 grams.
#Squirrel monkey plus
These monkeys grow to 25 to 35 centimetres, plus a 35 to 42 centimetres tail. This black and white face gives them their German name, ‘skull monkeys’. Squirrel monkeys throats and ears are white and their mouths are black. Squirrel monkey fur is short and close, colored olive at the shoulders and yellowish orange on its back and limbs. Their range extends from Costa Rica through central Brazil and Bolivia. Squirrel Monkeys (New World Monkeys) Squirrel monkeys live in the tropical forests of Central and South America.
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