tar snake

The North American Tar Snake (Posteriorus Puckerus) originated in the northern climates of the United states and has migrated to all corners of the country. It's breeding grounds are on warm asphalt surfaces. The Tar Snake can range in size from a mere few millimeters to several kilometers...

Anybody know for sure where tar snakes come from? I originally thought they resulted from road crew's attempts at sealing minor cracks in the pavement. But upon closer inspection, they typically don't seem to have anything to do with repairs; they're just random dribbling of tar all over the...