A species of frog that was recently rediscovered after being declared extinct has been reclassified as a "living fossil". Israel's Hula painted frog had not been seen for nearly 60 years, but in 2011 one was found lurking in a patch of swampy undergrowth. Tests have revealed that the frog belongs to a group of amphibians that died out 15,000 years ago. BBC News - Rediscovered Hula painted frog 'is a living fossil'