Eli5: why are invasive species so good at living in foreign places?

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I feel like invasive species would have a harder time living in a new area because they don’t know how to hunt/fight in the new area. I always hear how sensitive animals can be to changes in their environment too, so wouldn’t moving animals to a whole new environment mess them up? Why is this not the case?

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Anonymous 0 Comments

sometimes that does happen the way you described, and we don’t hear about those, because those species die out in their new environment.

but, the reverse is also true. the existing environment is used to doing things its way, including all the animals and plants in it. here comes this outside guy, maybe they don’t know what to make of it. so either predators are not sure they can eat it, or it grows faster than other plants, or it eats something that isn’t used to being hunted, or whatever, and it’s able to outcompete the native species.

that’s when we call it an invasive species.

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