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Squirrel monkey in Yacuma Park, Bolivia. Squirrel monkeys are New World monkeys of the genus Saimiri. Saimiri is the only genus in the subfamily Saimiriinae.The name of the genus is of Tupi origin (sai-mirím or çai-mbirín, with sai meaning 'monkey' and mirím meaning 'small') [3] and was also used as an English name by early researchers.
The black-capped squirrel monkey (Saimiri boliviensis) is a species of New-World monkey native to the upper Amazon basin in Bolivia, western Brazil and eastern Peru. [3] [4] They weigh between 365 and 1,135 g (13 and 40 oz) and measure, from the head to the base of the tail, between 225 and 370 mm (9 and 15 in). [5]
Squirrel monkeys have the largest brains of all primates relative to their body size; the Central American squirrel monkey's brain weighs about 25.7 g (29 ⁄ 32 oz), or about 4% of its body weight.
This is a list of large extant primate species (excluding humans) that can be ordered by average weight or height range.There is no fixed definition of a large primate, it is typically assessed empirically. [1]
The black squirrel monkey (Saimiri vanzolinii), ... Male black squirrel monkeys range in weight anywhere from 0.64 to 1.22 kilograms (1.4 to 2.7 pounds). [6]
Common squirrel monkey is the traditional common name for several small squirrel monkey species native to the tropical areas of South America.The term common squirrel monkey had been used as the common name for Saimiri sciureus before genetic research by Jessica Lynch Alfaro and others indicated S. scuireus covered at least three and possibly four species: the Guianan squirrel monkey (S ...
Males have an average body weight of 829 g (29.2 oz) and females have an average body weight of 695 g (24.5 oz). [7] The grey-crowned Central American squirrel monkey is arboreal and diurnal. It lives in groups containing several adult males, several adult females and juveniles.
Guianan squirrel monkey males have a body between 25 and 37 centimetres (9.8 and 14.6 in) long with a tail between 36 and 40 centimetres (14 and 16 in) long. [5] Females have a body between 25 and 34 centimetres (9.8 and 13.4 in) long with a tail between 36 and 47 centimetres (14 and 19 in) long. [5]