When a Lake Malawi cichlid loses a tooth, a new one drops neatly into place as a replacement. Why can't humans similarly regrow teeth lost to injury or disease?
Evolution
Oct 19, 2015
0
63
(Phys.org)—An international team of researchers has found evidence of dental work done during the Ice Age that included using a sharp object to remove diseased cavity tissue and fillings with a tar-like substance. In their ...
Many ancient human teeth, including specimens tens of thousands of years old, still hold onto tiny pieces of food -- and even bacteria. Anthropologists are studying the tartar attached to ancient human teeth to learn more ...
Archaeology
May 31, 2012
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1
(Phys.org) —Researchers from the United States have identified fossilized remains found in Kenya seven years ago, as those belonging to an old-world monkey (Cercopithecidae) and relative of modern proboscis and colobus ...
Teeth can reveal a lot, such as how the earliest mammals lived with their neighbors. Researchers have uncovered dozens of fossilized teeth in Kuwajima, Japan and identified this as a new species of tritylodontid, an animal ...
Archaeology
Apr 25, 2016
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37
(Phys.org)—A small team of researchers with members from the Natural Museum of London, King's College, and the University of London has conducted a study of the toothlike skin denticles exhibited by many chondrichthyan ...
Can a crocodile's smile reveal whether dinosaurs had lips? What if lips and gums hid most of dinosaur's teeth?
Archaeology
Jun 2, 2016
1
57
(PhysOrg.com) -- A new study by a Stony Brook University professor shows that structures that have been evolutionarily lost for hundreds of millions of years can be regained.
Evolution
Feb 7, 2011
33
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A new leech species with ferociously large teeth -- recently discovered in noses of children that swam in Peruvian rivers -- is providing insight into the evolutionary relationships among all the leeches that have an affinity ...
Archaeology
Apr 14, 2010
1
0
How far will you go to avoid bad luck? Do you avoid walking under ladders, carry lucky charms, or perhaps instead perform special rituals before important meetings or sporting events?
Evolution
Jun 7, 2011
9
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