The social relationship dynamic among callitrichid females is well known. Breeding exclusivity by dominant females involves female-female competition, usually resulting in the inhibition of subordinate reproduction. ...

Simple, rapid and stable sperm evaluation methods which have been optimized for common marmoset (Callithrix jacchus) are critical for studies involving collection and evaluation of sperm in the field. This is particularly ...

O objetivo do presente estudo foi avaliar radiograficamente os membros torácicos e pélvicos de um grupo de saguis mantidos em cativeiro, oriundos de apreensões realizadas para o combate do tráfico ilegal de animais. Foram ...

The human social repertoire is one of the most puzzling phenomena and historically under examination by several philosophical and scientific traditions. Both the extent of that repertoire and the evolutionary process ...

We analyzed data on captive-born and wild-caught females housed under natural conditions in a colony located in northeastern Brazil. No differences in reproductive performance were found between captive-born and wild-caught ...