Satan incarnate both tamed and wild. I've lost many a home and tames due to wild Megatheriums, but they are an absolute powerhouse upon being tamed. I still hate them though. They don't have very good A.I though, so they get stuck pretty easy in natural terrain. If you're looking to kill one, take an aerial dino like a pteradon or Archie and just strike from above. They don't know what to do.

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