![](https://i.kinja-img.com/gawker-media/image/upload/c_fit,fl_progressive,q_80,w_636/de415cce8e85318440ec1886a74d947b.jpg)
The threatened Pearl River darter (Percina aurora) has not been recorded in its namesake river for 40 years, according to the U.S. Fish & Wildlife Service.
The threatened Pearl River darter (Percina aurora) has not been recorded in its namesake river for 40 years, according to the U.S. Fish & Wildlife Service.