The Hellbender, the largest salamander in the Americas, reaching up to two and a half feet, are endangered due to human activities such as tracking, .<br>The largest salamander in North America is elusive and facing threats. Researchers are trying to find out what is leading to the decline of these amphibians.<br>Originally published on Dec 10, 2012. Revised Oct. 2013 A Missouri resident, the hellbender is the largest species of salamander native to North America.<br><br>The Saint Louis Zoo is raising over 180 Ozark hellbender larvae for eventual release back to the wild. These young salamanders, also known as snot otters, .
