alt Hacker NewsAnd now we’ve come full circle to the uselessness of this label.
A species evolving in Area A and migrating to Area B is extremely common.
Camels, horses, marsupials, elephants, cats, opossums, New World monkeys, and even Homo sapiens all evolved in regions different than where they are found now.
Once they’re integrated into their ecosystems we just don’t refer to them as invasive. But calling something invasive or not doesn’t affect their ecosystem integration, causality works in reverse.
So the relevant question is, again, whether these have become critical to their now-local ecosystems.
> And now we’ve come full circle to the uselessness of this label.
No, we've come to a point where you've moved the goalposts and refuse to support an assertion you made by answering a simple question.
> Camels, horses, marsupials, elephants, cats, opossums, New World monkeys, and even Homo sapiens all evolved in regions different than where they are found now.
All of this seems to stem from you not understanding what "invasive species" means, and, apparently, refusing to just Google it.
Invasive species have to be introduced by humans and harmful to the environment. Some of the things you listed fit that definition and some don't.
But regardless, you haven't given any evidence that eradicating those things from their new environment would harm that environment.