The researchers found tooth shape varied, depending on the types of food a carnivore regularly bites into – in much the same way we choose a kitchen knife depending on what we’re cutting up.
A close-up of the head of a leafcutter ant, Atta cephalotes, showing the metal-infused teeth on its mandibles.
Many small animals make their teeth and claws from a smooth blend of proteins and heavy elements. These materials can form very sharp tools that make it possible to cut tough substances using tiny muscles.
Tassie devils are notorious scavengers, eating everything from echidnas to stranded whales. Understanding how their teeth wear down can help us feed and protect captive populations.
The health of your teeth has a major effect on your body.
Cavity-free teeth depend on many factors, and heredity may not be the most important.
A piece of a Priosphenodon lower jaw found in the field in Argentina.
The recent discovery of fragments of a jaw fossil show that at one point, herbivorous reptiles evolved highly complex and efficient teeth.
Mark Kostich / Shutterstock
Some snakes have tough, blunt fangs for cracking crabs. Others have sharp needles for getting a grip on mice.
The ruins of the Temple of Victory in Himera, which was constructed to commemorate the first battle in 480 B.C.
Are the descriptions of war passed down by ancient historians accurate? A site in Sicily provided a rare chance to fact-check stories told about two battles from more than 2,400 years ago.
Scientists have long believed that sharks were the first vertebrates to evolve teeth. Our new study reveals a more complex history.
A woman walks past a photograph of a smiling woman outside a dental office, in Vancouver, B.C., Aug. 3, 2020.
THE CANADIAN PRESS/Darryl Dyck
Oral health is a key part of overall health, but many Canadians skip dental care due to the cost, resulting in emergency room visits and health issues. It’s time for a dental care plan for all Canadians.
Like rings in tree trunks, the layers of our teeth carry a detailed record of our growth — and reveal lead contamination is common.
Smiling schoolboys reveal their missing teeth.
Anthony Asael/Art in All of Us /Contributor via Getty Images
During this unsettling time, global leaders have assured children and adults alike that the tooth fairy, free from the risk of infection, is indeed an essential worker.
Carbonation and flavors are all that go into most seltzers.
stockcam/E+ via Getty Images
Bubbly waters are becoming increasingly popular. While these carbonated, sometimes flavored beverages might cause slight harm to teeth, they are far better than soda. They might even be good for you.
If you still have most of your teeth and they’re tightly jammed together, flossing is important. But for some people, simply flossing might not be enough.
Archaeologists investigate an ancient habitation site in western Mongolia, seeking clues to the early history of domestic horses.
Archaeologists have long argued over when and how people first domesticated horses. A decade ago, new techniques appeared to have provided answers – but further discoveries change the story again.
Examining the fossilised teeth of dinosaur species like Spinosaurus Aegyptiacus can reveal clues about their diets and place on the food chain.
Teeth can reveal a lot about diversity when they are reasonably well-preserved.
If one of your goals is to drink more water this year, then make sure you read this.
No-one wants to spoil their holiday with a trip to the dentist.
Here's how to avoid a trip to the emergency dentist this holiday.
CT scan of a catshark hatchling head. Note the ridged scales.
Rory Cooper, Kyle Martin & Amin Garbout/Natural History Museum London
Shark skin is composed of millions of tiny scales, which have a similar chemical composition to human teeth.
It’s not all about the cost of treatment – and this is something the next government will need to address.
Teeth cleaning at the dentist can remove plaque that regular brushing and flossing can’t.
Do you really need a dental clean every six months? Most healthy people will probably be OK if they go anually. But some people are at higher risk of cavities or gum disease, and should go more often.