In The Dark Side of Man, Michael Ghiglieri, a biologist and protege of Jane Goodall, takes on one of the most highly charged debates in modern science: the biological roots of bad behavior. Beginning with rape, and moving on to murder, war, and genocide, Ghiglieri offers the most up-to-date, comprehensive look at the male proclivity for violence. In a strong narrative voice, he draws on the latest research and his own personal experiences--both as a primatologist and as a soldier--to explain that male violence is largely innate, a product of millions of years of evolution. In the...

Fasten your life jackets for a ride you'll never forget. Now the excitement of a raft trip through the Grand Canyon has been re-created by a seasoned whitewater guide with a passion to share one of the world's most fantastic journeys. Michael Ghiglieri, a professional river guide for more than 17 years, has written the first book to describe that trip from the modern boatman's point of view.

From Lee's Ferry to Diamond Creek, Ghiglieri leads you down 226 miles of wild river and through some of the most breathtaking scenery on earth. Along the way, he navigates the Colorado River's...