This kind of explains how so many species got extinct shortly after a new predator entered their territory for the first time: Lack of prudence concepts. :-)
Famous last words of Meerkat1 to Meerkat2: "Oh, look, there's a 2m tall sharp toothed omnivore over there that I've never seen before!" Meerkat2: "Great, let's climb him and look around from up there whether there's any danger in sight!".
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