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The prettiest, nastiest sea slug you’ve ever seen washes up on Australian beach

Although not often seen, blue dragons sometimes wash up on Australian shores when chasing after prey. 

Despite their small size, the sea slug is known to feast on the poisonous Portuguese man o’ war, whose tentacles can stretch for 164 feet and are used to paralyze its prey.

The blue dragon not only clings to the Portuguese man o’ war’s tentacles, but can consume their toxic nematocyst cells and store them for later in little sacs to sting predators. This allows their own sting to be potentially even more intense than a Portuguese man o’ war.

In other words, don’t mess with it.