The cane toads—Bufo marinus, natives of Central America—were imported by the sack-load to Aus-tralia in 1935 in an attempt to rid the country of the Greyback beetle, which was rapidly destroying the sugarcane crop. The cane toads adapted beautifully to their new surroundings. Problem was, the beetle could fly and the cane toad couldn’t. What the cane toad is unusually proficient at, however, is making more cane toads—thousands upon thousands more. Cane Toads: An Unnatural History tells the story of this amphibious assault—warts and all.