In The Trouble with Testosterone, Robert M. Sapolsky draws from his career as a behavioral biologist to interpret the peculiar drives and intrinsic needs of that most exotic species - Homo sapiens. With candor, humor, and lush observations, these essays marry cutting-edge science with a rich and compassionate humanity. Sapolsky's book ranges broadly over the web of life, studying its details and plotting its themes. "Curious George's Pharmacy" examines recent exciting claims that wild primates know how to medicate themselves with forest plants. "Junk Food Monkeys" relates the adventures of a troop of baboons who stumble onto a tourist garbage dump. "Poverty's Remains" claims that science is as riddled with metaphors as a Shakespearean sonnet.