Sentences with phrase «male rhesus macaques»

Researchers from the University of North Carolina at Chapel Hill (UNC) and the Oregon National Primate Research Center found that the sperm of the male rhesus macaques that were tested stopped moving 30 hours after the compound was administered intravenously.

Red - hot males: sexual strategies of high - ranking male rhesus macaques (Macaca mulatta)[abstract].

Is the red facial coloration of male rhesus macaques (Macaca mulatta) subject to intra-sexual selection?

Alpha male status and availability of conceptive females are associated with high glucocorticoid concentrations in high - ranking male rhesus macaques (Macaca mulatta) during the mating season.

In the PLOS ONE paper, Chan and colleagues describe how three male rhesus macaques they studied displayed cognitive and motor impairments emerging at 16 months of age, and dystonia and signs of neurodegeneration on brain imaging at 24 months of age.

Using a process called somatic cell nuclear transfer (SCNT), a team from Oregon Health & Science University (O.H.S.U.) in Portland implanted the contents of individual skin cells from adult male rhesus macaques into each of 304 macaque egg cells stripped of their genetic material.

During the study, thirty hours following a high - dose intravenous infusion of EP055 in male rhesus macaques, O'Rand and researchers in the Oregon National Primate Research Center at OHSU in Portland, Oregon, found no indication of normal sperm motility.

Not exact matches

Previous studies have shown that rhesus macaque skin coloration is involved in mate selection - both males and females show interest in darker red faces displayed in the opposite sex.

The collaborative international research also shows that skin coloration in male and female rhesus macaques is an inherited quality — the first example of heritability for a sexually - selected trait to be described in any mammal.

Using these images and 20 years of genetic parentage data, the researchers assessed whether the variation in red ornaments influenced fecundity — that is they produced more offspring — and is heritable in male and female rhesus macaques, two necessary conditions for the trait to be considered under sexual selection.

Ten male Indian rhesus macaques (Macaca mulatta), aged 2 — 3 years were subjected to infection with B. burgdorferi by nymphal Ixodes scapularis tick feeding.

In rhesus macaques, mothering style is correlated with offspring cortisol and serotonin levels (14, 15), and in baboons, the male offspring of subordinate mothers exhibit higher glucocorticoid levels than the offspring of more dominant mothers (16).

We tested the hypothesis that a repeat polymorphism in the rhesus macaque MAOA gene promoter region influences aggressive behavior in male subjects.