From time to time, there are whispers that red wolves still roam parts of Texas. There shouldn't be any there – the animals were officially declared extinct in the wild roughly 40 years ago.
But a new discovery lends at least a skerrick of truth to some sightings, at least on Galveston Island on the Texas coast. Genetic testing of road-kill has revealed that a population of dogs on the island carry the 'ghost' genes of this recently vanished species.
Read more at Genes.