Author Cat Bohannon on how science has ignored the contributions of our female pre-historic ancestors. Her book is called "Eve--How the Female Body Drove 200 Million Years of Human Evolution. 

Comedian JL Cauvin made a name for himself pretending to be other people. Now he reveals how his spot-on impression of Donald Trump changed his life. 

Former NFL great Charles Mann says if he knew then what he knows now.... He would never have played football.