Some readers of recent Smithsonian stories on wild pigs in Texas and the world's worst invasive mammals list have argued that we may have left out the worst invasive species of them all: Homo sapiens. But are humans really an invasive species? Let's start with the definition of an invasive species. read more
3) An invasive species is introduced to a new habitat: Humans move themselves; there is no outside entity facilitating their spread. 4) An invasive species had adverse effects on its new habitat and/or on human health: Humans meet this part of the definition in too many ways to count. read more
We humans invented the term "invasive species", to label species that we ourselves have directly or indirectly introduced in an environment where the species was not found before, and as a consequence of this introduction, the species causes harm to the environment, other species, or to humans. read more