Thumbs, Toes, and Tears: And Other Traits That Make Us Human

The fascinating evolutionary links between six seemingly unremarkable traits that make us the very remarkable creatures we are.,,Countless behaviors separate us from the rest of the animal kingdom, but all of them can be traced one way or another to six traits that are unique to the human race—our big toe, our opposable thumb, our oddly shaped pharynx, and our ability to la….Read More