After three years of studying the non-native northern snakehead in the Potomac River, including an intensive tagging program this past spring, scientist are beginning to gain an understanding of the Asian transplant. And there is some good news: One of the most frightening concerns--that the fish might devoir or displace the river's famous bass fishery--seems dispelled so far. "A bass is probably more likely to eat [a snakehead]" longtime guide Ken Penrod told the Washington Post, noting that he hasn't seen any change in the bass fishing. "It's a lot about nothing, I think." That said, scientist still have a list of worries. Check out this article for the latest in the river's snakehead saga.