The universe is about 20 billion years old, our earth is about 4.6 billion...........u do the math.........

Genetic History of America

What is interesting about Naia’s body, small at only 4ft 10ins and surrounded by the bones of sabre-tooth tigers, pumas, and other animals that shared her fate in the sinkhole over the centuries, is the ancient mitochondrial DNA extracted from a molar tooth. Mitochondrial DNA is genetic material that is inherited solely from the mother, and so can be used to trace hereditary genetic relationships. After genetic sequencing, the authors placed her DNA within the D1 subgroup of “haplogroup D”. A haplogroup is a section or group of sections of mitochondrial DNA collectively inherited from the mother.

The D haplogroup is thought to have originated in Asia some 48,000 years ago, and is one of five found among Native American peoples, the others being A, B, C, and X. But this particular subgroup D1 occurs only in the Americas, and the discovery of this skeleton adds weight to what is known as the Beringia Standstill hypothesis. This holds that the original ancestral Native Americans were isolated genetically from other populations for thousands of years.