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Other Invertebrates: World's Weirdest: Sea Cucumber Fights With Guts (Literally)

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      • © National Geographic

        World's Weirdest: Freaks in the Ocean

        World's Weirdest: Sea Cucumber Fights With Guts (Literally)

        This defenseless-looking sea cucumber has a secret weapon. When under threat, it expels its own guts as sticky filaments that can tangle or injure its aggressor.

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