1. What Happened To...
... and depth as the shorelines migrated inward under rapidly rising seas. Rainfall patterns shifted; the seasons themselves were lengthened or shortened. Temperatures rose all over the earth. And of course, in the wake of so much physical perturbation to the environment, biotic systems changed. These great changes in the physical environment are at the heart of many scientists" belief that the large ... assume for now that they in fact did arrive in this time period; we know this because there are many archeological sites scattered all over North America that contain human artifacts. The f...
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- Approx Pages: 12