11: Oldest evidence of humans in Kansas
New discoveries announced today by the Kansas Geological Survey push the date for earliest known human occupation of the Sunflower State back about 1000 years, to 12,000 years ago. This study assumes evolution, geological time scales, and the extinction of species. It makes a testable hypothesis (i.e., that humans occupied Kansas earlier than had previously been thought) and tests that hypothesis (using carbon-14 degradation for dating organic materials.) It offers ideas for future research (e.g., why humans kept returning to this site).