One of the earliest recognized forms of sexual conflict was infanticide by males, which
imposes serious costs on female reproductive success. Here I review two bodies of …

Renewed interest in fission-fusion dynamics is due to the recognition that such dynamics
may create unique challenges for social interaction and distinctive selective pressures …

The “Capuchin research community roundtable: working together towards a comparative
biology of Cebus and Sapajus” was held at the International Primatological Society …

Socioecological models assume that primates adapt their social behavior to ecological
conditions, and predict that food availability and distribution, predation risk and risk of …

To determine whether tool use varied in relation to food availability in bearded capuchin
monkeys, we recorded anvil and stone hammer use in two sympatric wild groups, one of …

Body mass is fundamental for understanding growth, health, and aspects of life history but
records of body mass are rarely available for wild primates. We documented the body mass …

Testosterone and cortisol are hormones expected to play a major role in competitive
behaviours (ie aggression), and are related to rank and hierarchical stability. Through a non …

In primates, many species exhibit same-sex sexual behaviors (SSB), defined as “genital
contact or genital manipulation between same-sex individuals.” Several sociosexual …

Captive and field studies both provide valuable and complementary information that lead to
a better understanding of a species' behavioral ecology. Here, we review studies from wild …

The platyrrhine family Cebidae (capuchin and squirrel monkeys) exhibit among the largest
primate encephalization quotients. Each cebid lineage is also characterized by notable …