For 15 years, Bill Wallauer scrambled up and down the hills and valleys of Gombe National Park in Tanzania, camera in hand, filming the daily dramas of the world’s most famous chimpanzee society. Chimpanzee births, dominance displays, infanticide attempts, encounters with snakes, the mysterious waterfall and rain “dances” – he has seen all of this and more. Much of his footage is unprecedented – including capturing a live birth on tape as well as a group of males moving with eerie silence through the forest as they patrolled their territory and ultimately located and killed an adolescent from a neighboring community.