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 ...

Of the many stresses and worries of everyday modern life, the one thing we generally don't need to be concerned about is being eaten. At the top of the food chain, it has been millennia since we took ...