Nature

Season 19, Episode 7

Episode Title: Triumph of Life: The Four Billion Year War

Air Date: 2001-01-15

Overview:

THE FOUR BILLION YEAR WAR explains how both conflict and cooperation have helped shape the species that today populate our world. And it profiles the winners and losers in this epic evolutionary contest — from the massive dinosaurs who disappeared long ago to the humble bacteria that have survived for billions of years virtually unchanged.