The species of Bermudian land snail, known as Poecilozonites bermudensis, hadn't been seen on the island for more than 40 years. But now a colony of the creatures has been found flourishing in a "damp and overgrown alleyway" in the capital city, Hamilton, by a local resident, the Royal Gazette website reports. "For it to be found in Hamilton is unbelievable. It's the last place you would imagine that a small colony of rare snails would be discovered," says Dr Mark Outerbridge of the government's Conservation Service. It's thought that by choosing a concrete home, the snails were protected from the predators that wiped out the rest of their population, Dr Outerbridge says.