Gators may grow 4,000 teeth over their lifetimes.
More than 50 of the most dangerous, disgusting, humiliating and just plain bad professions
Can genetically engineered bacteria cure tooth decay?
Scientists have created cultured teeth, seeding them like pearls in the intestines of rats. Progress with stem cells and tissue engineering promises to bring this tech to dentistry.
A complete skull of an ancient infant primate was found in northern Kenya
It takes real proof to back up even the simplest theories--these 10 studies show that the obvious can have not-so-obvious implications
Pinpointing the smell of death will help cadaver dogs track down bodies more quickly
After staring at the sun for hundreds of millennia, humans still have burning questions about it
Or at least keep your teeth cavity-free. A growing chorus of medical researchers say our bacteria-killing zealotry is misguided. Instead of fighting bugs, they argue, we should train them to do our bidding and then set them loose in our bodies. The trouble is keeping them there
Teeth and bones alone can't determine whether someone is a minor
Only one county commissioner wanted to add the chemical to tap water.
Randal Koene is recruiting top neuroscientists to help him make humans live forever
But it's more common than you think
A more elegant toothbrush, for a more civilized time
Sure, the Large Hadron Collider has another two decades of cutting-edge science left in it, but physicists are already designing the high energy experiments of the future.
Say "ahh": new saliva tests that will catch cancer, gum disease and even exhaustion
Think kids can't change the world? Think again!