Learn how researchers use archaeological techniques to show how sea turtle shells grow in layers that capture chemical clues ...

Techniques developed to study the distant past—from dating ancient artifacts to reconstructing climate records in ice ...

CONSIDER the floating fortress that is a sea turtle. It seems to fly gracefully through the water even though it is encased in heavy armour. This combination of poise and protection evolved like any ...

By studying the chemical fingerprints inside each layer, scientists have been able to learn about the turtles’ lives and the ...