在澳洲，淡水鱷魚因為食用入侵物種美洲巨蟾蜍導致數量下降。研究人員收集了美洲巨蟾蜍的屍體，去除了有毒部分，並注射了一些能讓鱷魚感到不適的化學物，造成類似於食物中毒的效果。然後研究人員將這些蟾蜍懸掛在水邊。一段時間後，鱷魚很快就學會了不食用這些蟾蜍誘餌，並相信牠們經過訓練學會不再捕食這些有毒蟾蜍，因為與沒有進行鱷魚訓練的地點相比，經過訓練的地區鱷魚的死亡數量大大減少了。
In Australia, the number of freshwater crocodiles are declining due as they are consuming poisonous invasive cane toads. Researchers collected dead cane toads, removed the toxic parts, and injected some drug that can make the crocodiles feel sick, similar to food poisoning effect. Researchers then hang the toads over water bodies. The crocodiles learned quickly not to take the toad baits after a while, and believed they learned to avoid live toads as well because the number of dead crocodiles have greatly reduced compared to sites that didn’t not have the training.
