Guest Opinion. Altruism is helping without a benefit and sometimes at a risk to one’s self. Animals helping others of their own species makes sense to perpetuate the species or help continue their own ...

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 ...