Tail skin temperatures reflect coping styles in rats

This study was carried out to elucidate the predictive value of tail skin temperatures (TSTs) assessed in naïve rats as a non-invasive pre-experimental method of classification of coping style. Male Lewis rats were classified according to tail skin temperatures (TST), and relative size within cage-groups. TSTs were monitored over two-hour periods following exposure to physical […]

Chest staining variation as a signal of testosterone levels in male Verreaux’s Sifaka

Male Verreaux’s sifaka (Propithecus verreauxi) exhibit variation in the staining of chest hair in association with the activity of the sternal gland. Scent-marking behavior and social relationships have been shown to vary with the state of chest staining. Research on other mammals suggests that sternal gland activity is modulated by testosterone. The goal of this […]