Thursday, September 22

DNA Rewrites History



The origin of Assateague’s wild horses has remained a mystery for centuries, but new genetic data supports the theory that they descended from Spanish horses marooned on the barrier island. Credit: Florida Museum photo by Jeff Gage



Ancient DNA from an American domesticated horse lends credence to shipwreck folklore.

An abandoned Caribbean colony discovered centuries later and a case of mistaken identity in the archaeological record have colluded to rewrite the history of a barrier island off the shores of Virginia and Maryland.

When Nicolas Delsol, a postdoctoral researcher at the Florida Museum of Natural History, set out to analyze ancient DNA recovered from cow bones discovered in archaeological sites, these seemingly unrelated threads were woven together. 

Delsol wanted to know how cattle were domesticated in the Americas, and he discovered the answer in the genetic information preserved in centuries-old teeth. However, they also held a surprise.  READ MORE...

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