 Many species prey on the cane toad and its tadpoles in its native habitat , including the broad @-@ snouted caiman ( Caiman latirostris ) , the banded cat @-@ eyed snake ( Leptodeira annulata ) , eels ( family Anguillidae ) , various species of killifish , the rock flagtail ( Kuhlia rupestris ) , some species of catfish ( order Siluriformes ) , some species of ibis ( subfamily Threskiornithinae ) , and Paraponera clavata ( bullet ants ) . Predators outside the cane toad 's native range include the whistling kite ( Haliastur sphenurus ) , the rakali ( Hydromys chrysogaster ) , the black rat ( Rattus rattus ) and the water monitor ( Varanus salvator ) . The tawny frogmouth ( Podargus strigoides ) and the Papuan frogmouth ( Podargus papuensis ) have been reported as feeding on cane toads ; some Australian crows ( Corvus spp . ) have also learned strategies allowing them to feed on cane toads , such as using their beak to flip toads onto their back . Opossums of the Didelphis genus likely can eat cane toads with impunity . Meat ants are unaffected by the cane toads ' toxins , and therefore are able to kill them . The cane toad 's normal response to attack is to stand still and let their toxin kill the attacker , which allows the ants to attack and eat the toad . 
