Toxic cane toads are an invasive species in Australia, brought to the country in the 1930s to control agricultural pests. Native species like freshwater crocodi

Toxic cane toads are an invasive species in Australia, brought to the country in the 1930s to control agricultural pests. Native species like freshwater crocodiles eat them and die. Now a team has found a way to train the crocodiles and other lizard species to avoid the toads by substituting a non lethal toxin in toad carcasses.