The Asian or Black-spined Toad (Duttaphrynus melanostictus) has all the makings of a classic bad guy. The toad poisons predators, competes with burrow-nesting birds, and disrupts both nutrient pools and parasite dynamics. The Asian Toad’s latest target? Madagascar, where native species may be threatened by predation, competition for resources, or the toad’s natural defensive toxins.
