The hellbender (Cryptobranchus alleganiensis) is the largest amphibian in the United States. In Alabama, it is found only in river systems in the northermost counties. This image shows a model of the hellbender as well as a skeleton of the animal.

The hellbender (Cryptobranchus alleganiensis) is the largest amphibian in the United States. In Alabama, it is found only in river systems in the northermost counties. This image shows a model of the hellbender as well as a skeleton of the animal.