By copying the behaviour of a Tropical fish, Humans could one day regrow their own teeth

We only have two sets of teeth to last us a lifetime. But cichlid fish in Lake Malawi have an endless supply. Whenever they lose a tooth, a new one drops neatly into place. Now new research suggests humans could one day be able to regrow their own teeth in the same way as cichlids, spelling the end for dentures. Working with hundreds of cichlids, scientists are attempting to find out