Teeth

A coating of iron on Komodo dragons' teeth could help keep them sharp for tearing into prey, as well as protect them from digestive acids.

Komodo Dragons Have Iron-Coated Teeth, Study Finds

New research provides the first evidence of the adaptation in a carnivorous reptile, and it might hold clues to understanding the teeth of dinosaurs

This illustration shows how the two-inch-long, curved teeth may have protruded from the extinct salmon's face.

These Massive, Extinct Salmon Had Spiky Teeth Like a Warthog's Tusks

For decades, scientists thought the teeth pointed downward, similar to those of a saber-toothed cat, but now they believe the fish's chompers jutted out sideways

An anonymous dentist recognized the jawbone, because it looked similar to the CT scans he reviews every day at work.

Dentist Discovers Human-Like Jawbone and Teeth in a Floor Tile at His Parents' Home

Scientists are planning to study the specimen, embedded in travertine from western Turkey, in hopes of dating and identifying it

An artistic representation of the Gotlant burial of a Viking-era woman with a modified skull

Vikings May Have Used Body Modification as a 'Sign of Identification'

A recent study analyzes Scandinavian examples of filed teeth and elongated skulls dating to the Viking Age

Oral health problems can signify other problems throughout the body.

Why Isn't Dental Health Considered Primary Medical Care?

Ailments of the mouth can put the body at risk for a slew of other ills, yet dentistry is often siloed

Want to know what a sand tiger shark has been eating? Look to its teeth.

What Centuries-Old Shark Teeth Reveal About Brazil's Ocean

Researchers examined the remnants of a 13th-century fishing site to get a picture of how the marine ecosystem has changed

Churchill's custom-made dentures helped him maintain his distinctive speaking style.

Winston Churchill Wore False Teeth to Deliver Historic Wartime Speeches. Now, They're for Sale

The British prime minister likely acquired the custom gold-mounted dentures around the beginning of World War II

Workers discovered this Indigenous ossuary while digging in Toronto.

Construction Workers Discover Indigenous Burial Ground in Toronto

Researchers who investigated the site estimate that it's about 700 years old

These fossilized teeth belonged to a Propliopithecus chirobates, a type of early primate that lived between 29 million and 35 million years ago.

Early Primates May Have Feasted on Soft, Sweet Fruits

An analysis of more than 400 fossilized teeth suggests the creatures weren't eating many seeds, nuts or other hard foods

Jurassic lampreys help bridge the evolutionary gap between the earliest lampreys and those species still alive today.

These Large, Flesh-Eating Lampreys Lived 160 Million Years Ago

Paleontologists in China recently unearthed the fossilized remains of two new species of lamprey, a group of jawless fish that dates back 360 million years

Early humans in Europe snacked on seaweed and aquatic plants for thousands of years, though how they prepared and ate them is unclear.

Early Europeans Ate Seaweed for Thousands of Years

Researchers found biomarkers of seaweed and other aquatic plants in samples of dental plaque

Nihohae matakoi swam in waters off the coast of New Zealand around 25 million years ago.

These Prehistoric Dolphins Had Tusk-Like Teeth

The animals likely thrashed their heads back and forth to injure or stun prey with their unusual, horizontal teeth

The mastodon tooth was discovered on Rio Del Mar State Beach in California.

Woman Finds Mastodon Tooth on California Beach

The photos she shared set off a search for the fossil, which she had left behind. Now, scientists have the tooth, just the third of its kind found locally

Mammoth and elephant tusks are elongated incisors, so they're made of the same materials as other teeth.

Male Woolly Mammoths Had Testosterone-Fueled Aggressive Episodes

By studying preserved tusks, scientists suggest the mammals experienced a yearly condition known as musth, like male elephants do today

A portrait of Anne d’Alégre, a 17th-century French noblewoman who masked her poor dentition with gold wire and an elephant ivory false tooth

What Secrets Lie Beneath This 17th-Century French Aristocrat's Smile?

New research suggests noblewoman Anne d’Alégre used gold wire to keep her decaying teeth in place

Researchers analyzed teeth from a carp-like fish.

Early Humans May Have Cooked Fish 780,000 Years Ago

New research adds to the debate about when humans began cooking with fire

An artist’s reconstruction of Qianodus duplicis, the earliest known fish that had a mouth with teeth

Haul of Fossil Fish Pushes Back the Origin of Teeth and Jaws

The unexpected finds illustrate life during a critical and little-understood time period

Researchers found chewing gum can increase metabolic rates by up to 15 percent.   

Chewing Uses More Energy Than You'd Think

And it may have influenced the way our jaws and teeth evolved

A Tyrannosaurus rex skeleton named STAN is one of the most complete specimens ever found.

Study Refutes Controversial Research That Divided the T. Rex Into Three Species

Scientists published a rebuttal article that found “insufficient evidence for multiple species of Tyrannosaurus”

The tooth from Laos thought to belong to a Denisovan girl

Ancient Molar Found in Laos Could Help Fill in a Gap in Human History

Researchers believe the tooth belongs to a Denisovan girl, making it the first fossil evidence of these hominins in Southeast Asia

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