The Younger Dryas Impact Event, postulated here by researchers Ted Bunch, Richard Firestone and Ken Tankersley, may have led to the extinction of large mammals, such as mammoths, saber tooth cats, and 33 other species of large mammal 12,900 in the past. Perhaps more disturbing is the effect the event had on the first inhabitants of America, the so-called Clovis people. The Clovis culture disappears at the same time the animals do. This short excerpt provides some background on this cosmic incident and the evidence supporting it. | Stone Age comet destroys North America | George Howard | Published on May 30, 2008
