DNA is a biochemical that contains genetic information. And like all other cellular ingredients, it decays if cellular systems don’t maintain it. Now, scientists are more confident about how fast it falls apart after a cell dies
.A team of researchers recently completed a thorough investigation of 158 ancient leg bones that belonged to giant extinct birds called moa, which once lived on New Zealand’s South Island. Using radiocarbon ages and measures of DNA integrity, the researchers generated a DNA decay rate with unprecedented rigor. But their results do not fit with claims from secular scientists who have found plenty of examples of intact DNA from supposedly million-year-old samples.