New research suggests right-handedness prevailed 500,000 years ago
(PhysOrg.com) -- Research by University of Kansas professor David Frayer shows that distinctive markings on fossilized teeth correlate to the right or left-handedness of individual prehistoric humans.
If these teeth could talk: What was really on the menus of our ancestors?
For human ancestors, eating could be hard work.
Reptilian root canal: Study reveals infection in jaw of ancient fossil
A reptile that lived 275-million years ago in what is now Oklahoma is giving paleontologists a glimpse of the oldest known toothache.
When African animals hit the hay: Fossil teeth show who ate what and when as grasses emerged
Fossil teeth of African animals show that during the past 10 million years, different plant-eating critters began grazing on grass at different times as many switched from a salad-bar diet of tree leaves and ...
Archaeologists discover saber-toothed vegetarian
Surprised scientists have discovered the remains of a saber-toothed vegetarian.
Biologists use GPS to 'map' bats teeth to explore evolutionary adaptations to diet
(PhysOrg.com) -- In a clever use of GPS technology, biologists at the University of Massachusetts Amherst have "mapped" the topography of bat teeth as if they were uncharted mountain ranges, in order to better ...
Ancient teeth raise new questions about the origins of modern man
Eight small teeth found in a cave near Rosh Haain, central Israel, are raising big questions about the earliest existence of humans and where we may have originated, says Binghamton University anthropologist ...
Pulled teeth stored for stem cells
Naidelys Montoya didn't wait for her son's baby teeth to fall out. She took the boy to an oral surgeon to have two of the loose ones extracted.
Ever-sharp urchin teeth may yield tools that never need honing
(PhysOrg.com) -- To survive in a tumultuous environment, sea urchins literally eat through stone, using their teeth to carve out nooks where the spiny creatures hide from predators and protect themselves from ...
Researchers find first genetic evidence for loss of teeth in the common ancestor of baleen whales
(PhysOrg.com) -- In contrast to a toothed whale, which retains teeth that aid in capturing prey, a living baleen whale (e.g., blue whale, fin whale, humpback, bowhead) has lost its teeth and must sift zooplankton ...
Stonehenge skeleton came from Mediterranean
(AP) -- A wealthy young teenager buried near Britain's mysterious Stonehenge monument came from the Mediterranean hundreds of miles away, scientists said Wednesday, proof of the site's importance as a travel ...
A smart use for wisdom teeth: Making stem cells
For most people, wisdom teeth are not much more than an annoyance that eventually needs to be removed. However, a new study appearing in the September 17 Journal of Biological Chemistry shows that wisdom teeth contain a valu ...
Chew on this: 6 dental myths debunked
Brushing, flossing, and twice-yearly dental check-ups are standard for oral health care, but there are more health benefits to taking care of your pearly whites than most of us know. In a review article, a faculty member ...
Researchers uncover 'oldest' dog remains in Swiss cave
Researchers have found that fragments of a dog's skull and teeth discovered in a cave in Switzerland date back more than 14,000 years in what could be the oldest known remains of man's best friend.