Ancient DNA help scientists study human evolution: `It`s like a time capsule`
(PHYSorg.com Archaeology & Fossils)

Archaeologists learn about the past by piecing together artifacts from material culture: the tools, artwork and architecture left behind that tell us how ancient humans lived. But imagine being able to study their DNA, to learn about how different groups of people were related to each other, where they came from or even what kinds of diseases they had?