By Anthony Rivas | Tue, 10/01/2013 - 19:46
Testosterone may be known for its role in sexual drive and aggressiveness, but it has a softer side to it when competition is out of the question.
By Christine Hsu | Fri, 01/04/2013 - 16:18
Bonobos will give up their own meal for the company of strangers.
By Christine Hsu | Thu, 12/27/2012 - 10:24
How do you raise your chances of successfully getting people to contribute their share to charity? Go blonde, suggests a new study.
By Christine Hsu | Wed, 12/26/2012 - 15:56
Monkeys aren't particularly generous, but a new study revealed that when they do act selflessly, a specific part of their brains keeps count of these kindnesses.