National Invasive Species Information Center
U.S. Department of Agriculture

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  • Invasive Species Bullfrog and Snake Cost World $16bn - Study

    • Jul 29, 2022

    • BBC News.

    • Scientists tallying the economic damage wrought by invasive pests across the world found two species are responsible for more harm than any other.

      The American bullfrog and brown tree snake have collectively caused $16.3bn in global damage since 1986. In addition to ecological harm, the invasive pair have ruined farm crops and triggered costly power outages.