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Modern humans are the only surviving hominin from what was once a rich, fairly bushy family tree. But why did we alone survive?
Paleoanthropologist Ian Tattersall discusses our human origins in Masters of the Planet.
Genetic analysis of DNA from a single prehistoric finger bone may point to a new branch of the human family tree.
Researchers unveiled several studies of an early hominid known as Ardipithecus ramidus. We'll find out how those studies affect our understanding of human evolution.
Ira Flatow and guests share science funnies and discover an element of humor (pu...
Researchers have tickled gorillas, bonobos, chimps and humans in an effort to un...
Do 'science' and 'comedy' go together?
Can hearty laughter have some of the same physiological effects as exercise?
Smile, smile, smile. Happiness may be catching.
Author Scott Weems lets us in on the jokes and uncovers the science of humor.