Dr. Gill and his team were able to come to this conclusion by extracting bacterial DNA from the feces of two volunteers.

吉尔博士和他的研究小组是通过提取两位志愿者粪便中的细菌 DNA 后得出这一结论的。

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In 2008, it was rediscovered by the University of Copenhagen's Eske Willerslev, who then led a team in extracting and sequencing DNA from the hair.

2008年，哥本哈根大学的Eske Willerslev让这簇头发重新受到了重视。他带领自己的团队从这簇头发中提取了DNA并对其进行了测序。

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Dr Paabo is an expert in extracting and interpreting the DNA of fossils.

Dr paabo是提取和解释化石dna的专家。

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Kristina Killgrove, an archaeologist at Vanderbilt University has been working with the skeletons of the common people of Rome, extracting their DNA to learn their stories.

FORBES: An Archaeologist Wants The Story Of Rome's 99%

DeFontes said the owner of the tooth had been made an offer from an unnamed European firm that had been interested in extracting DNA from the tooth for cloning but they were refused.

BBC: Elvis tooth goes on sale