Cane toad, Bufo marinus, are large toxic animals that are native to Central and South America and were introduced to Australia in 1935 to eradicate sugarcane beetles. These toads however have had detrimental effects on native Australian fauna – including marsupials, snakes & lizards. Checking the spread of these toads has been a task next to impossible. Recent work from Rick Shine’s lab shows that the diurnal toads somehow fail to detect approaching Iridomyrmex reburrus ants, and the ants kill and feed on the toads. Read more about this latest research where the authors report their findings and discuss the possibility of using these ants to control cane toad spread.
Reference: Ward-Fear G et al., 2009. Maladaptive traits in invasive species: in Australia cane toads are more vulnerable to predatory ants than are native frogs. Functional Ecology: DOI 10.1111/j.1365-2435.2009.01556.x