White-faced capuchin monkeys in Costa Rica who experienced more intense physiological responses to mild droughts were more ...

surrounded by tall trees that make a home for 15 capuchin monkeys. The animals get to live up in the trees in a large open-air habitat as opposed to being locked up in cages by their former owners.

In it, two capuchin monkeys were placed side by side in glass cages. In turn, they handed a token to a human researcher in exchange for a reward. But for the same action, one received a simple ...