Ancient DNA analysis can reveal insight into past populations on many levels. Unfortunately, accessing the osseous labyrinth inside the petrous bone, which has the highest concentration of endogenous DNA of any skeletal element, creates a problem for analysis: It requires intact skeletal remains.
PhD candidate Kendra Sirak has developed a new technique to access the osseous labyrinth without the damage done by established techniques. She details the process in her paper published in BioTechniques and has taught the technique to experts in ten different countries, which has allowed them to perform the procedure independently.
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