Mark spoke with National Geographic about 'Toughie' and the global amphibian crisis.
Toughie died on September 26, 2016, and his death brought a lot sadness and attention to the current state of the world's amphibian populations. 43% of which are in decline or already extinct. Although Toughie's death and the likely extinction of the Rabbs' Fringe-limbed Tree Frog is an extreme conservation failure, he continues to be an inspiration to conserve species while there is still time.