Ancient Baby Boom Could Foreshadow Future

A massive baby boom that began 1,500 years ago in the American Southwest and ended around 1,300 A.D. could offer valuable insight into modern-day overpopulation, new research suggests.   Examining thousands of remains of Native Americans and their tools gathered from the Four Corners region (where Arizona, New Mexico, Colorado and Utah meet), scientists painted a picture of how several societies evolved from hunter-gatherers into farmers.   That transition, researchers say, led...

© La Voix de l'Amérique - mardi 1^er juillet 2014