Intimate Strangers: Unseen Life on Earth | 1999
Program that examines the microbial world. Part 1 examines the human genome -- as scientists map it. They find ancient DNA of microbes at the root of the human family tree. This installment follows the quest of scientists to understand how all human life on earth is related. Part 2 explores how microbes drive the chemistry of life and effect the global climate. This episode follows scientists who are exloring human reliance on these organisms. Part 3 involves the relationship between infectious diseases and microbes in the human body. Part 4 focuses on scientists who are turning to innovative and high-tech partnerships with microbes for solutions to the challenges of the 21st century.