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They Filled a Lake with Piranhas and Then Released a Single Crocodile. In twenty eleven, swimmers in Bolivia were pulled from lakes bleeding, their limbs shredded by unseen jaws. That same year, Brazilian researchers dropped a juvenile crocodile into a piranha-infested tank and what happened next had them pulling the plug in under five minutes. Since then, scientists and military labs have quietly staged predator battles that stretch biology to the edge. And now, the real question is this: when a full-grown Nile crocodile enters piranha waters… who actually walks out alive? Keep watching to find out.
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Video “They Filled a Lake with Piranhas and Then Released a Single Crocodile” was uploaded on 08/11/2025 to Youtube Channel The Ultimate Discovery