Back in Kentucky and Indiana we had these creatures called water moccasins which were some sort of horrible poisionous snake supposedly. When the waters all warmed up in the summer they would hatch in the rivers and lakes. Used to hear about people stepping on "nests" in the water and thinking they were completely entangled in barbed wire. Seems like once a summer you would read about some poor water skier or fisherman falling into a big nest and ending up floating down the river.