Absurd Creature of the Week: The 120-Foot-Long Jellyfish That’s Loving Global Warming
In the Sherlock Holmes story “The Adventure of the Lion’s Mane,” our hero is strolling along a beach when he comes across a man in his death throes, staggering and screaming before shouting his last words: “The lion’s mane!” His name is Fitzroy McPherson, and all over his back are thin red lines—which Sherlock notices because he’s a detective and all—as though the man “had been terribly flogged by a thin wire scourge.” McPherson’s colleague, a mercurial fellow named Ian Murdoch, becomes a person of interest. He had, after all, once thrown McPherson’s dog through a plate glass window. But that suspicion falls to pieces when the dog-hurler himself staggers into Sherlock’s home in comparable agony, all marked up with the same red lines. And then the answer hits the great detective. With a police inspector and a guy named Stackhurst he hurries to the beach and finds the culprit: “Cyanea!” he cries. “Cyanea! Behold the Lion’s Mane!” It’s a great jellyfish among the rocks. Shouts Sherlock: “It has done mischief enough. Its day is over! Help me, Stackhurst! Let us end the murderer forever.” And with that they push a boulder into the water, crushing the critter.
That’s a whole lot of animal cruelty in a single short story, and the severity of a sting from a lion’s mane jellyfish, known scientifically as Cyanea capillata, is highly exaggerated here. But this critter is actually far more remarkable than its fanciful villainization. What Sherlock failed to mention is that this is the world’s largest jellyfish, with a bell that reaches a staggering 8 feet wide and tentacles that grow to 120 feet long, far longer than a blue whale. And this monster is really, really loving the whole global warming thing, conquering more and more of Earth’s oceans in massive blooms. So please, if you will, welcome our new giant gelatinous overlords. (via Absurd Creature of the Week: The 120-Foot-Long Jellyfish That’s Loving Global Warming | Science | WIRED)