Here’s a new list of threatened amphibian species in the U.S. and Canada, ranked in order of priority for bringing into captivity and breeding under the Amphibian Ark initiative.  The plan in the U.S.  and Canada is going to be implemented by the zoos and aquariums accredited by the Association of Zoos & Aquariums.  The list starts on page 2. At the top of the list: the Ozark Hellbender, a salamander, pictured above.