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Big Seattle tunneling project beginning

The world's largest tunneling machine is sinking its teeth into the soil under downtown Seattle. Full story

PFT: Wednesday morning one-liners

Bills Hall of Fame QB Jim Kelly is doing well with a prosthetic jaw and false teeth that allow him to eat after much of his jaw and all of his teeth were removed during surgery as part of treatment for cancer. The Dolphins’ new linebackers looked good on their first day of camp. One… Full story

Huge Plant-Eating Dinosaur Never Ran Out of Teeth

Some plant-eating dinosaurs grew new teeth every couple of months, with some of the largest herbivores developing a replacement tooth every 35 days, to keep their chompers from getting too worn down on all that vegetation, new research finds. Full story

Mummy Teeth Tell of Ancient Egypt's Drought

The link between drought and the rise and fall of Egypt's ancient cultures, including the pyramid builders, has long fascinated scientists and historians. Now, they're looking into an unexpected source to find connections: mummy teeth. Full story

Ancient Elephants Grazed Before They Had Teeth for It

Ancient elephants switched from eating primarily leaves and shrubs to feeding on grass several million years before their teeth were fully adapted for grazing, according to a new study. Full story

Got gas? Solving common health issues

   TODAY nutrition editor Madelyn Fernstrom tests the TODAY anchors knowledge of the best way to deal with health issues like excess gas, leg cramps, and discolored teeth.

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Articles

Ancient Kangaroo Teeth Reveal Australia’s Tropical Past

Ötzi the Iceman Needed a Dentist

Vicious Shark-Tooth Weapons Reveal 2 Lost Species

Biological Teeth Grow from Gum Cells

Why Astronauts Need Good Teeth in Space (Video)

Sea Urchin Teeth & Trippy Clamshell Snag Science Visualization Awards

Ancient 'killer walrus' not so deadly after all

'Super predator' terrorized Jurassic Europe

Odd, ancient bird had sharp teeth

Starvation didn't wipe out saber-toothed cats

Video

  Downed in Dallas, victim says 'excessive force'

Broken teeth and face trauma are just two of the injuries a woman claims to have suffered after a Dallas County detention officer slammed her to the ground while handcuffed. NBCNews.com's Dara Brown reports.

  Use vodka to kill bacteria, freshen drapes

Lifestyle expert Bruce Lubin has some unusual but clever ways to remove stains, such as using toothpaste to clean silver and pantyhose to remove deodorant from shirts.

  Survey: Happy couples sleep in the nude

Authors Chrisanna Northrup and Pepper Schwartz surveyed close to 100,000 people to see what makes couples happy, and found out the happiest couples sleep in the nude, trust each other, and have sex three to four times a week.

  Beauty trends for whitening teeth, smoothing skin

From hair to nails to teeth, lifestyle expert Sarah Eggenberger has scoured the market to choose the best products that will help you stay beautiful, including skin cream to lessen hyperpigmentation, lip colors and instant teeth whiteners.

  Rushdie's new memoir tackles life during the fatwa

Author Salman Rushdie joins Morning Joe to discuss his new book "Joseph Anton: A Memoir," about how his life changed after having a fatwa put on him by the Ayatollah Khomeini. 'Joseph Anton' is the alias Rushdie used during the time of the fatwa, a combination of the names Joseph Conrad and Anton Ch

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Related Photos

A lioness bares its teeth inside an enclosure after a raid at a zoo-like house on the outskirts of Bangkok, Thailand Monday, June 10, 2013. Thai police and forestry officials searched and seized a number of imported and endangered animals including 14 lions from Africa and arrested the house's owner

A woman poses with a locust between her teeth at a discovery lunch in Brussels
A woman poses with a locust between her teeth at a discovery lunch in Brussels

A woman poses with a locust between her teeth at a discovery lunch in Brussels September 20, 2012. Organisers of the event, which included cookery classes, want to draw attention to insects as a source of nutrition. REUTERS/Francois Lenoir (BELGIUM - Tags: FOOD SOCIETY)

Little boy brushing teeth
Little boy brushing teeth

Little boy in orange brushing teeth with effort over white background

A racegoer holds his Guinness with his teeth while reading the race card at the Cheltenham Festival horse racing meet in Gloucestershire
A racegoer holds his Guinness with his teeth while reading the race card at the Cheltenham Festival horse racing meet in Gloucestershire

A racegoer holds his Guinness with his teeth while reading the race card at the Cheltenham Festival horse racing meet in Gloucestershire, western England March 13, 2013. He is the co-owner of I'm Fraam Govan which ran in the Champion Bumper but was not placed. REUTERS/Eddie Keogh (BRITAIN - Tags: SP