Animals Who Self-Medicate: Using Nature to Survive

Did you know that Monarch Butterflies lay their eggs on one single plant that protects the next generation from parasitic infection? Or that primates swallow whole leaves without chewing to literally scrape parasites from their stomach? This hour uncovers stories of nature's brilliance as it manifests in animal intuition for preservation of the species - and what we as human beings can learn from them. Guest:Mark Hunter, Professor of Ecology & Evolutionary Biology, University of Michigan, Ann Arbor, MI