Food webs support every living thing on Earth. But they are easily disrupted. This sometimes happens as a result of overexploitation, as in the oceans and forests. Australia's cane toad exemplifies what can happen when people call introduce species into a food web. A small group of cane toads was transported from Hawaii to Australia in 1935. Sugarcane farmers hoped that the toads would eat beetles that had been killing their plants. The toads proved useless in this capacity. But they ate many other types of insects, including the bees that pollinate native Australian plants. Cane toads even ate birds'eggs, frogs, and small mammals. Because of a toxin in the toad's body that protects it from predators, the cane toad has thrived. Today the species is so widespread that it is difficult to control.