Ecological and evolutionary impacts of toxic prey

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The current invasion of feral cane toads into the Australian wet-dry tropics provides a unique opportunity to study natural selection in action. These highly toxic anurans kill many of the predators that attempt to ingest them. Within two years, the toads will reach a floodplain near Darwin where we are conducting a longterm (already, > 15-year) ecological research program on snakes. The knowledge and data base resulting from this program, plus many thousands of individually-marked predators whose home ranges and demographic histories are known, provide a unique opportunity to examine the ecological and evolutionary impact of toads.