When you think of water pollution, you probably think of farm runoff or industrial chemicals, not animals doing what comes naturally in the woods. But according to a story in the Washington Post, the states of Maryland and Virginia have determined that animal waste does play a significant role in water pollution. Scientists tested harmful bacteria in local rivers and streams, and found that many of the germs came from wildlife dung. Part of the problem lies with high populations of deer, geese, and racoons living in modern suburbs. But some believe the pollution standards themselves might be flawed, if they appear to forbid something as natural as this. Either way, it’s not likely anyone will be able to flush away this problem anytime soon.