Eisenberg, John F. 1973. "Reproduction in two species of spider monkeys, Ateles fusciceps and Ateles geoffroyi." Journal of Mammalogy, 54, (4) 955–957. https://doi ...

Monkeys and apes, though both primates, exhibit distinct differences in anatomy, habitat, and evolutionary traits. Monkeys, with their tails and smaller size, thrive globally, while apes, tailless and ...

A new report is the latest to bolster long-standing allegations that many long-tailed macaques imported into the U.S. for biomedical research were illegally caught from the wild and falsely labeled as ...