Research on non‐human primates in the endangered tropical dry forest of Sector Santa
Rosa (SSR), Área de Conservación Guanacaste (ACG), was launched in 1983 and is now …

In human-modified tropical landscapes, the survival of arboreal vertebrates, particularly
primates, depends on their plant dietary diversity. Here, we assess the diversity of plants …

We use two novel techniques to analyze association patterns in a group of wild spider
monkeys (Ateles geoffroyi) studied continuously for 8 years. Permutation tests identified …

Behavioural contagion is a widespread phenomenon in animal species, which is thought to
promote coordination and group cohesion. Among non-human primates, however, there is …

Network analysis has increasingly expanded our understanding of social structure in
primates and other animal species. However, most studies use networks representing only …

Abstract Objectives Female bonobos (Pan paniscus) are characterized as highly affiliative
and cooperative, but few studies have quantified the strength and stability of female intra …

Rapid facial mimicry (RFM), the rapid and automatic replication of facial expression
perceived, is considered a basic form of empathy and was investigated mainly during play …

Trichromatic primates have a 'red-green'chromatic channel in addition to luminance and
'blue-yellow'channels. It has been argued that the red-green channel evolved in primates as …

Ruffed lemurs (genus Varecia) are often described as having a flexible social organization,
such that both cohesive (low fission–fusion dynamics) and fluid (high fission–fusion …

Animals typically forage in groups. Social foraging can help animals avoid predation and
decrease their uncertainty about the richness of food resources. Despite this, theoretical …