In this June 18, 2014, photo, an adult hellbender, measuring 21 inches in length, rests in a measuring device on near Corydon, Ind., along southern Indiana's Blue River after being caught by a Purdue University team surveying the river for the rare amphibians. The big salamander was later released by the Purdue team back into the river. Hellbenders, North America's largest salamander, are endangered in Indiana and four other states and face habitat pressure in most of the 11 other states where they're found. (AP Photo/Rick Callahan)
CORYDON, Ind. (AP) — With a long, slimy body and beady eyes, North America's largest salamander wouldn't top any cutest animal lists. The hellbender's alien appearance and mysterious ways have earned the big amphibian a bad reputation and unflattering nicknames ranging from snot otter to devil dog.