Huntsville, Ala. (AP) - The slenderclaw crayfish is barely surviving in northern Alabama.
Al.com reports that the tiny animal is now known to survive in just two creeks near Sand Mountain, where they burrow under rocks in shallow, slow-moving waters.
The animal lost most of its original habitat when the Tennessee River was dammed to create Lake Guntersville in 1939. And the population is still dwindling.
Biologists who study the slenderclaw crayfish are not entirely certain why the population is still declining.