LeSSOn B Reading Our Family Journey track 1-08 A StudieS of modern dnA and ancient human remains tell us that all humans today come from a small group of African ancestors. Over 50,000 years ago, these ancestors began an amazing journey. After leaving Africa, they split into groups and entered new lands. By crossing from continent to continent, our ancestors migrated to all parts of the globe. 1 Oldest Humans B Omo I and Omo II are the oldest known fossil remains of modern humans like ourselves. Scientists believe Omo I and Omo II lived about 195,000 years ago. 2 Distant Relative C The common male ancestor of every living man lived in Africa about 60,000 years ago. This man was not the first human—he had human ancestors. Also, he was not the only man alive at that time. However, his descendants are the only ones still alive in the present day. 3 Leaving Africa D The first large group of migrants left Africa about 50,000 years ago. They probably traveled through southern Arabia, across India, and into Southeast Asia. 4 First Australians E Some of the early migrants reached Australia. Scientists have discovered stone objects and other remains in the area of Lake Mungo. The findings show that people cooked fish and other animals there about 45,000 years ago. 5 Across Asia F 52 | Monte Verde 9 About the same time, other groups of migrants moved across central Asia. Scientists call this area a “migration superhighway.” Some humans went west, but mountains and forests made reaching Europe difficult. Most migrants went east, across flat lands called the Eurasian steppes. As they moved north, they made clothing to keep warm in the colder weather. UNIT 3 42139_ch03_ptg01_hr_041-060.indd 52 7/20/12 1:57 AM 6 Mammoth Hunters 8 G FPO Discovery of hunting tools shows that humans reached Siberia about 40,000 years ago. The hunters probably followed migrating mammoths. Scientists found similar hunting tools in North America. These findings tell us the hunters’ descendants were probably the first people to reach North America. 6 5 7 ChauvetPont-d’Arc 7 Early Art 3 1 2 4 9 Journey’s End J In 1976, 13,000-year-old human remains were found by a river in the Monte Verde area in southern Chile. South America was the last continent reached by humans in their migration around the globe. These tools of early Americans, discovered in Cactus Hill, Virginia, may be some of the oldest yet found in the Americas. In 1994, scientists found the world’s oldest artwork in a French cave called Chauvet-Pontd’Arc. Early humans painted hundreds of animals on the cave walls, including lions, H rhinos, and mammoths. Scientists also found the oldest human footprints here. They are probably the footprints of a child who lived about 26,000 years ago. 8 Into America Lake Mungo About 25,000 to 30,000 years ago, the sea level was about 300 feet (90 meters) I lower than it is now. At that time, a 620-mile (1,000-kilometer) “land bridge” connected Asia and North America. Humans probably migrated from Asia to North America by this bridge. F A m i ly T i e s 42139_ch03_ptg01_hr_041-060.indd 53 | 53 7/20/12 1:58 AM
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