Invasive Species: Enemies or Saviours?

Most of us think in stark terms about invasive species: they are evil interlopers spoiling pristine "natural" ecosystems. But what if the traditional view of ecology is wrong—what if true environmentalists should be applauding the invaders? In his latest book, The New Wild: Why Invasive Species Will Be Nature's Salvation, veteran environmental journalist Fred Pearce argues that we should applaud the dynamism of alien species and the novel ecosystems they create.

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