They lived in trees and apparently moved on top of tree limbs by a combination of quadrupedalism and leaping, much as do living squirrel monkeys of the genus " Saimiri ".
12.
A typical experiment tested food aversion learning in squirrel monkeys ( " Saimiri sciureus " ) and common marmosets ( " Callithrix jacchus " ), using several kinds of cues.
13.
The Central American squirrel monkey ( " Saimiri oerstedii " ) also has a restricted distribution, living only on part of the Pacific coast of Costa Rica and a small portion of Panama.
14.
Only the mothers care for the young . " Saimiri oerstedti " are weaned by 4 months of age, while " S . boliviensis " are not fully weaned until 18 months old.
15.
Primates found in the reserve include the mottle-faced tamarin ( Saguinus inustus ), squirrel monkey ( Saimiri sciureus ), tufted capuchin ( Sapajus apella ), white-fronted capuchin ( Cebus albifrons ), collared titi ( Callicebus torquatus ), Venezuelan red howler ( Alouatta seniculus ), golden-backed uakari ( Cacajao melanocephalus ) and Spix's night monkey ( Aotus vociferans ).
