Tiny Time Machines Revisit Ancient Life


Science Magazine.org
For hundreds of years, humans studying ancient life had to rely on stones and bones for hard evidence about what extinct creatures looked like. In the past decade, powerful new x-ray scans and three-dimensional computer models have transformed the analysis of bones, teeth, and shells. But something even more revolutionary has been afoot: a new kind of analysis capable of revealing anatomical adaptations that skeletal evidence can’t provide, such as the color of a dinosaur’s feathers or how woolly mammoths withstood the cold.