In an advance toward solving a 50-year-old mystery, scientists are reporting new evidence on how the fluoride in drinking water, toothpastes, mouth rinses and other oral-care products prevents tooth decay. Their report appears ...
Biochemistry
May 1, 2013
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The cricetids, including extant hamsters, constitute one of the most diverse families of rodents. The Eurasian Paleogene and early Neogene cricetid rodents are very diverse, but the phylogenetic relationships among these ...
Archaeology
Mar 25, 2013
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For decades, archaeologists have debated how farming spread to Stone Age Europe, setting the stage for the rise of Western civilization.
Archaeology
Feb 11, 2013
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(Phys.org)—Dental microwear, the pattern of tiny marks on worn tooth surfaces, is an important basis for understanding the diets of fossil mammals, including those of our own lineage. Now nanoscale research by an international ...
Analytical Chemistry
Jan 9, 2013
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Beak shape variation in Darwin's finches is a classic example of evolutionary adaptation, with beaks that vary widely in proportions and shape, reflecting a diversity of ecologies. While living birds have a beak to manipulate ...
Archaeology
Jan 7, 2013
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Taking inspiration from Mother Nature, scientists are reporting an advance toward preventing the tooth sensitivity that affects millions of people around the world. Their report on development of the substance, similar to ...
Materials Science
Jan 2, 2013
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(Phys.org)—Researchers from several universities in the US have together found that it is possible to follow changes in a wild animal's diet over a single year period by studying isotopes in feces samples. The team used ...
(Phys.org)—The fossilized fangs of saber-toothed cats hold clues to how the extinct mammals shared space and food with other large predators 9 million years ago.
Plants & Animals
Nov 6, 2012
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There are various types of toothpaste available on the market. They come as pastes and gels, there are some that guard against tooth decay or protect teeth from acid attack, others that are designed for sensitive teeth. But ...
Other
Oct 1, 2012
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Researchers may have uncovered new evidence of ancient dentistry in the form of a 6,500-year-old human jaw bone with a tooth showing traces of beeswax filling, as reported Sep. 19 in the open access journal PLOS ONE.
Archaeology
Sep 19, 2012
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