First fossil bird with teeth specialized for tough diet
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 ...
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.
Ancient meat-loving predators survived for 35 million years
A species of ancient predator with saw-like teeth, sleek bodies and a voracious appetite for meat survived a major extinction at a time when the distant relatives of mammals ruled the earth.
Tracing humanity's African ancestry may mean rewriting 'out of Africa' dates
New research by a University of Alberta archeologist may lead to a rethinking of how, when and from where our ancestors left Africa.
Researchers find shark teeth made of natural fluoride
Paleo-engineering: New study reveals complexity of Triceratops' teeth
When it comes to the three-horned dinosaur called the Triceratops, science is showing the ancient creatures might have been a little more complex than we thought.
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 ...
Bioinspired material mimics squid beak
(Phys.org) —Researchers led by scientists at Case Western Reserve University have turned to an unlikely model to make medical devices safer and more comfortable—a squid's beak.
Weird Australian hammer-tooth marsupial fossil found
(PhysOrg.com) -- Fossils of bizarre lizard-like, snail-eating marsupials have been discovered by UNSW palaeontologists in an ancient fossil field in the Riversleigh World Heritage area in Queensland. The fossils ...
Tooth loss in birds occurred about 116 million years ago
The absence of teeth or "edentulism" has evolved on multiple occasions within vertebrates including birds, turtles, and a few groups of mammals such as anteaters, baleen whales and pangolins. Where early birds are concerned, ...
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 ...
Precision and brawn a deadly combination
(Phys.org) —A bizarre, pouched super-predator that terrorised South America millions of years ago had huge sabre-like teeth but its bite was weaker than that of a domestic cat, new research shows.
Elephant tooth evolution rooted in grass
Once they developed a taste for grass, the ancestors of today's elephants swiftly broadened their leaf-only diet and placed their progeny on a new evolutionary track, a study said Wednesday.