The Crucifix Toad, also called the Holy Cross Frog, Notaden bennettii, lives in the dry outback of eastern Australia. When it gets too dry, this little guy burrows deep underground and goes into a semi-hibernating state, like many of his neighbors. However, it is the substance secreted by this little amphibian that makes it special. When disturbed by insects or other threats, the Crucifix Toad secretes a sticky substance known to be one of the strongest natural adhesives in the world. It will even stick metal to metal! Even more valuable, it is being used inside human bodies for medical purposes, far exceeding the usefulness of limited protein-based and synthetic bonding agents currently being used. Check out the links below for more interesting tidbits!