Tortoise shells can yield information on nuclear contamination, scientists find

Researchers focused on turtles and tortoises from sites of nuclear testsTortoise and turtle shells can be used to study nuclear contamination, scientists have found.Just as tree rings can provide snapshots of the Earth's climate, and ice cores can give us information on past temperature, researchers found that the layers of shells can be used as a time stamp of periods with nuclear fallout. Continue reading...