The Glaucus Atlanticus, known as the Dragon Sea Slug or by it's other names is a mollusk that floats upside down at the ocean floor. No, it doesn't spit fire, nor does it fly although it is just as awesome. It's normal size is up to 3 cm. It has dark blue stripes along the edge of its feet. It eats many creatures that float on the surface, including the blue button and the violet snail but feeds mostly on Physalia. It has many sharp radular teeth and as it eats the Portuguese Man o'War for example it takes in its stinging cells. These are what the Portuguese Man o'War uses to catch it's prey. It contains a toxin that is capable of paralyzing small fish. The glaucus atlanticus isn't harmed by it and so it uses the captured stinging cells (nematocyst) for its own defense. Not only they use them for defense but they are able to select the most venomous nematocysts. This creature isn't much bigger then your thumb and feeds on something which can hurt us and we humans are way bigger. What a bad-ass slug this little fellow is.
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