Author(s): Arseneau-Robar TJ; Teichroeb JA; Macintosh AJJ; Saj TL; Glotfelty E; Lucci S; Sicotte P; Wikberg EC;

Intergroup aggression often results in the production of public goods, such as a safe and stable social environment and a home range containing the resources required to survive and reproduce. We investigate temporal variation in intergroup aggression in a growing population of colobus monkeys (C ...

Article GUID: 38906888

Author(s): Teichroeb JA; Smeltzer EA; Mathur V; Anderson KA; Fowler EJ; Adams FV; Vasey EN; Tamara Kumpan L; Stead SM; Arseneau-Robar TJM;

Our understanding of decision-making processes and cognitive biases is ever increasing, thanks to an accumulation of testable models and a large body of research over the last several decades. The vast majority of this work has been done in humans and laboratory animals because these study subjec ...

Article GUID: 37839050

Author(s): Arseneau-Robar TJM; Anderson KA; Sicotte P; Teichroeb JA;

Animals must learn foraging skills to successfully survive and reproduce but the sources of interindividual variation in learning are poorly understood. For example, there is little consensus on the role motivation plays, even though it is a key factor impacting learning outcomes in humans. Here, we conduct a field experiment on a wild primate to investig ...

Article GUID: 37468534

Author(s): Joyce MM; Teichroeb JA; Kaigaishi Y; Stewart BM; Yamada K; Turner SE;

Animals must make route choices every day when moving through their habitat while foraging. Choosing an optimal route can be cognitively costly, and primates and other animals have been shown to use simple heuristics, "rules of thumb", to make foraging route choices. We investigated the potential use of heuristics among foraging free-ranging Japanese monk ...

Article GUID: 37278740

Author(s): Teichroeb JA; Fox SA; Samartino S; Wikberg EC; Sicotte P;

Rare behaviors are often missing from published papers, hampering phylogenetic analyses. Here, we report, for the first time, masturbation and same-sex sexual behavior (SSB) in both male and female black-and-white colobus monkeys. We recorded these behaviors during 32 months of observation (1573 h of focal animal sampling) on Colobus vellerosus collected ...

Article GUID: 36849676