The cane toad is an "invasive species." Meaning it is not native to the area, in this case, not native to Hawaii. After being introduced into the Hawaiian Islands, the cane toads greatly affect local ecosystem. In the new area, they have a few natural predators and are able to spread. However, if they spread too much, that would be overpopulation, and the cane toads would be a great threat. Hope this helps!
