Surprising monkey study: Bad times do not cause group members to change behavior

(University of Southern Denmark) Researchers have observed an unexpected behavioral pattern in monkeys in Puerto Rico. As the population density in the group rises, the group as a whole produces fewer babies -- this is no surprise. But, to the surprise of researchers, it turned out that the group's individual members did not change behavior. How does this add up?
Source: EurekAlert! - Biology - Category: Biology Source Type: news