Cane Toads are considered a pest in Australia because they:
* poison pets and injure humans with their toxins
* poison many native animals whose diet includes frogs, tadpoles and frogs' eggs
* eat large numbers of honey bees, creating a management problem for bee-keepers prey on native fauna
* compete for food with vertebrate insectivores such as small skinks
* may carry diseases that are can be transmitted to native frogs and fishes.