A whole cocktail of different deadly toxins can be found on the Golden Poison Frog’s skin, including batrachotoxin and homobatrachotoxin. It is so toxic, in fact, that the poison from just one frog is enough to kill 20,000 mice or ten humans if it enters their bloodstream or mucous membranes. The worst part? There is no known antiserum for this poison. So it’s no wonder, then, that this small but deadly frog has nearly no animal predators.