For 30 years Roger Fouts has pioneered communication with chimpanzees through sign language—beginning with a mischievous baby chimp named Washoe. This remarkable book describes Fout's odyssey from novice researcher to celebrity scientist to impassioned crusader for the rights of animals. Living and conversing with these sensitive creatures has given him a profound appreciation of what they can teach us about ourselves. It has also made Fouts an outspoken opponent of biomedical experimentation on chimpanzees. A voyage of scientific discovery and interspecies communication, this is a stirring tale of friendship, courage, and compassion that will change forever the way we view our biological—and spritual—next of kin.