The human body is remarkably good at handling repairs. Cut the skin, and the blood will clot over the wound and the healing ...

There are specific conditions that need to be met for the drug to regrow teeth — it might not spontaneously grow new teeth in just any person who takes it. A rumor has circulated online since at least ...

Scientists discovered true teeth growing on the head of the spotted ratfish, a distant shark relative. The toothed structure, called a tenaculum, helps males hold onto females during mating. Genetic ...