Mice (Mus musculus) reared with rat aunts: The role of rat-mouse contact in mediating behavioural and physiological changes in the mouse
Prior research has found that mice reared and nursed by a lactating rat mother or reared in the presence of a non-lactating adult rat (an [`]aunt’) gave a significantly smaller adrenocortical response to a novel stimulus than did control mice. Although the aunt studies eliminated the rat mother’s milk as the critical variable, the experimental […]
Visitor effect on the behavior of a group of spider monkeys (Ateles geoffroyi) maintained at an island in Lake Catemaco, Veracruz/Mexico
We analyzed the effect of human visitors on the behavior of a group of spider monkeys (Ateles geoffroyi) kept on a small tourist island. Although the spider monkey is a common species in zoos, there are very few specific studies on visitor effects on these monkeys. We conducted behavioral observations on the group of spider […]