Kaspars Grenenbergs had "unbearable" toothache and was unable to get an NHS dentist so he used whisky for disinfection, took painkillers and ripped the tooth out ...

he asks. "That’s the way it starts with an adult tooth. It begins as a slight wiggle, and as it becomes more and more infected, the wiggle gets more serious. Eventually, you can actually feel ...

The clicking of flattened teeth, discovered by accident, could be “the first documented case of deliberate sound production in sharks,” evolutionary biologist Carolin Nieder, of Woods Hole ...