with impunity. The cane toad is native to the Americas, and its range stretches from the Rio Grande Valley in South Texas to the central Amazon and southeastern Peru . [ 50 [[ http://en.wikipedia.org/wiki/Cane_toad#cite_note-Tyler1989p111-49 |]]] [ 51 [[ http://en.wikipedia.org/wiki/Cane_toad#cite_note-ZugZug1979p1-2-50 |]]] This area encompasses both tropical and semiarid environments. The density of