The American bullfrog and brown tree snake have collectively caused $16.3bn (£13.4bn) in global damage since 1986. In addition to ecological harm, the invasive pair have ruined farm crops and ...

Consider, if you will, the American bullfrog. “In the Eastern U.S., where it’s native, its oversized impact is a good thing.

American bullfrog floating at the surface of a farm pond in Kentucky USA The Trump administration has taken aim at removing environmental federal protections for wetlands and isolated streams from ...