Sentences with phrase «human tooth samples»
To test the hypothesis, she spent eight hours rubbing baboon and human tooth samples with grass stalks, which, unlike wooden picks, contain hard deposits of abrasive silica.
http://discovermagazine.com/ Not exact matches
Denisova Cave (Altai Mountains 50,000 - 100,000 years ago) Samples of aDNA from one finger fragment and three teeth found in Siberia revealed Denisovans, a newly discovered type of extinct human.
The raw data included DNA from bacteria in the teeth, usually considered «old waste data,» says Willerslev, because it can contaminate the human DNA samples.
Anthropologist Shara Bailey, an expert in ancient human teeth at New York University in New York City, says that «the barium method is novel and appears to be even more powerful» than previous approaches, adding that despite small sample sizes, «the authors present a strong argument for the utility of this method for extrapolating weaning history.»
«It's even harder to sample a rare book than human fossils or teeth,» Collins says.
Nine samples from four sites were found to contain sufficient quantities of hominin DNA to merit further analysis, which revealed eight of them contained Neanderthal DNA and the other had DNA from Denisovans — a mysterious group of humans whose existence has only been gleaned from the DNA analysis of a few finger bones and teeth found in a Siberian cave.
Ask one of our team for a sample of pet toothpaste (do NOT use human toothpaste) and tips for brushing your pet's teeth.
A forensic anthropologist in the area of osteology carries out analysis of human bones, such as the femur (used to determine height of subject) and the hip / skull (used to identify gender), and the teeth samples (useful in determining the age).