The Bufo marinus toad (also known as: Rhinella marina, Cane toad, Giant toad, Marine toad, Giant marine toad, South American cane toad & Dominican toad) is an invasive species and pest. Native to South America, they were introduced to Florida in 1955 to help control sugar cane pests. However, these toads have become pests themselves. In fact, Bufo marinus has been called one of the 100 worst invasive species worldwide by the Invasive Species Specialist Group.
The Marine toad produces a poison known as bufotoxin. Bufotoxin is very dangerous, and sometimes fatal, to pets. Bufo toads are destructive to florida wildlife and crops as well. Cane toads are known to eat just about anything they can fit in their mouth. They outcompete (and even devour) native toads and frogs because of their size and toxicity. Furthermore, because Marine toads are not native, Florida predators have no natural immunity to the Bufotoxin the toad produces. Without predators, the toads quickly over populate, causing native species to struggle to compete. Because of this, biologists encourage humane extermination.