Australia is home to some of the world's deadliest animals. However, few are as dangerous as the cane toad. Native to Central and South America, the innocent looking amphibian is an invasive species that was imported to Australia in 1935 to control the native grey-backed cane beetles that were harming sugarcane crops. With very few natural predators their population began to grow rapidly. Experts estimate that there are currently over 200 million specimens spread across Northern Australia, and the numbers are only growing.