Book excerpt: "The Book of Animal Secrets" by Dr. David Agus

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Could mankind learn how to treat or avoid diseases and afflictions, like cancer or Alzheimer's, by studying the evolution of animals?

In "The Book of Animal Secrets: Nature's Lessons for a Long and Happy Life" (to be published March 7 by Simon & Schuster, a division of CBS' parent company, Paramount Global), Dr. David Agus examines how the genetics, behavior and diet of animals has protected them in their environments – lessons that could be used to our advantage, if we'd pay attention to them.