A new book looks at the health links between animals and humans. June 12, 2012— -- intro: Dr. Barbara Natterson-Horowitz is a sort of modern day Dr. Dolittle. For the past six years, the UCLA ...

Neanderthals, our extinct cousins, are often portrayed as eating nothing but meat — no fruit, no grains, no greens. But did Neanderthals really live on meat alone? While there's plenty of evidence ...