Michelle A. Rodrigues is an Assistant Professor in the Department of Social and Cultural Sciences at Marquette University.
The big question is, how did we manage to miss these behaviors in chimpanzees for so long?
Rather than being evicted from the womb before their heads are too big, a new hypothesis argues that human babies are born when their growth rates become too costly for their mothers’ metabolism to support.
A new study shows that chimpanzees and bonobos are far more similar in their gender roles than previously thought. In order to understand the range of complexity in our evolutionary cousins’ social lives, perhaps we first need to recognize the range of complexity that exists in our own.
Recent observations of homosexual behavior in male spider monkeys adds to our knowledge of these behaviors and may help us answer questions about the evolutionary functions homosexual behaviors may play.