The most dangerous of our newly introduced species is this big frog from the United States, which may grow to be up to 25 centimeters long. It devours food with a ravenous hunger and will consume virtually anything that is smaller than itself. As a result, it poses a significant danger to a good deal of our native flora and fauna. In addition to its enormous size, the cry that the males make is distinctive; in fact, the name of the frog comes from the sound that they make.
The presence of this species can primarily be attributed to the fact that its tadpoles can be purchased from local pet stores. After undergoing metamorphosis, the frog will frequently either be intentionally set free by careless individuals or will go away on its own accord. It is only known to have a very patchy distribution in the UK, but the fact that it has been shown to reproduce in the wild raises serious concerns. This introduced species raises the greatest concerns among all of those we've brought into the nation, and it's imperative that we eradicate it entirely from the wild here.