They aren’t from here. But they came, and now it seems like they’ve taken over the whole place! They use up all the resources, trample on the existing cultures, then move on to the next unsuspecting unfortunates. We know you think we’re talking about Americans, but no! This week, the guys manifest a destiny wherein they learn about the hidden lives of invasive species, those hearty, adaptive creatures that looked so cute in the store, but now they just ate the dog.

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