The callitrichines are best known for their suite of reproductive and behavioral
characteristics that are unusual or unique among the primates. Social suppression of …

Male intrasexual selection in haplorhine primates has previously been shown to increase
male size and to a lesser degree also female size. I address the following questions:(1) why …

Abstract “A primate with the skull of a Callicebus, the mandible and feet of a marmoset and
the tail and teeth of Pseudocebus [= Cebus]….”(Riberio, 1941 as cited in Hershkovitz 1 p …

The Callitrichidae are the smallest anthropoids, whereas the Cheirogaleidae include the
smallest of all primates. Using species‐level analyses, we show that these are derived …

A fundamental trend during primate evolution has been the expansion of brain size.
However, this trend was reversed in the Callitrichidae (marmosets and tamarins), which …

Platyrrhines occur exclusively in the tropical and subtropical Americas, from northern Mexico
to northern Argentina. They represent a radiation of primates with a long evolutionary history …

Patas monkeys (Erythrocebus patas) are midsized primates that feed extensively on the gum
of Acacia drepanolobium and the ants are housed in swollen thorns of this Acacia. Their diet …

Cottontop tamarins, Saguinus oedipus, do not spontaneously use tools in the wild or in
captivity. Yet, adults and naïve infants with no experimental experience with tools show …

A female spider monkey (Ateles belzebuth belzebuth) that gave birth to twins was studied
during 13 months, and her activity budget and diet were compared to those of females with …

There continue to remain uncertainty concerning the nutritional importance of figs (Ficus
spp.) in the primate diet. Although studies have been performed on the nutritional analysis of …