 The introduction of the cane toad was done as a biological control aimed at insect pests of sugarcane; as has been the case elsewhere, lack of predators to control the cane toad has led to uncontrolled populations in some areas.The wild form of the guppy ("Poecilia reticulata") is native to Barbados as well as Trinidad and northern South America.Introductions of aquarium varieties of the guppy into the wild mean that it may be impossible to distinguish between original and fancy varieties.