Blue dragons are generally smaller than one inch in length, and they’re full of poison because they feed on Portuguese man-of-wars—you know, those floating terrors (also known as blue bottles) whose tentacles can be up to 30 feet long. The blue dragon consumes the stinging cells that the man-of-war uses to immobilize fish, but instead of digesting the toxins, it stores them in sacs on its outer appendages.

According to a scientist interviewed by Australia’s Gold Coast Bulletin, it’s a good thing that Fry didn’t try to touch the slug she saw, because it might have stung her.

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