A Harvard-led team just successfully used low-powered lasers to activate stem cells and stimulate the growth of teeth in rats and human dental tissue in a lab. The results were published today in ...

The eating habits of rats and mice differ significantly. Mice have weaker teeth, making it easier to protect food sources from them by using barriers. Rats, with their stronger teeth, can be more ...

The best known is probably the naked mole rat, whose hairless, tubular, wrinkled body makes it appear a bit like a tiny walrus—or perhaps a bratwurst with teeth. Naked mole rats are rodents ...