Geneticist Mark Stoneking asked himself why. MARK STONEKING: The answer that seems obvious is that when we had body hair all over our bodies, we had one type of lice. They had to be able to protect themselves from wild animals. NARRATOR: On the African savanna, full of predators who hunt by night, Richard believes Turkana Boy and his people couldn’t have survived without fire. The amazing finds at Dmanisi have given us one last clue. And you could see footprints of hippos that had walked all over the bones, and some of the ribs and things were standing vertically instead of lying flat on the ground. How had a small, primitive Homo erectus migrated to the Caucasus almost 2,000,000 years ago—long before Turkana Boy?
Creativity, intelligence, caring for each other; how can we know when these got started? The shocking fact is that human mothers abandon their infants much more often than ape mothers. They called this baffling new ancestor Homo floresiensis, and, because of its tiny size, nicknamed it «the Hobbit.» RALPH HOLLOWAY: This has created a tremendous amount of grief, because we’re not really sure of what we’re seeing here. However you picture your retirement, Pacific Life can help, using 401(k) savings, life insurance and annuities to provide a dependable income for the rest of your life.
Becoming Human – Hour 2 PBS Airdate: November 10, 2009 NARRATOR: Humans: without a doubt, the smartest animal on Earth. The ancient Dmanisi landscape has been built up, layer by layer, over millions of years. Habitats that would normally be teeming with life become, essentially, biological deserts. Bookmark it today and give us your feedback.