The Northern Water Snake is a non-venomous snake commonly found in the eastern United States. It typically inhabits freshwater environments such as lakes, rivers, and ponds. This snake can grow up to 55 inches long and is often recognized by its dark, patterned skin, which can vary in color from gray to brown. These snakes are excellent swimmers and primarily feed on fish and amphibians. While they may appear aggressive when threatened, they are generally harmless to humans. The Northern Water Snake plays a vital role in its ecosystem by helping to control fish populations and maintain a balanced environment.