The U.S. government classifies all chimpanzees as endangered, after decades of stalling.
Human behaviors sync up when we hang out, and new research shows that other social animals might unconsciously mimic their peers as well.
Researchers are finding many genes unique to our species, but so far they reveal little about our most human traits.
A series of lawsuits attempting to establish legal personhood for chimpanzees has been unleashed in New York. While its backers cite precedents like slavery and gay rights in their pleadings, perhaps an example from the boardroom is in order.