The Prophet of the Lovely Star took the magical motto “To Mega Therion” when he attained the grade of Magus in the A.’.A.’.
Meanwhile the Prehistoric-fauna.com website bears an entry on “Megatherium”:
“Megatherium (meaning “Great Beast”) was a genus of elephant-sized ground sloths endemic to Central America and South America that lived from the Pliocene through to the Pleistocene existing for approximately 5.3 million years. Its size was exceeded by only a few other land mammals, including mammoths and the even larger Paraceratherium. Megatherium was one of the largest mammals known, weighing up to eight tons, about as much as a bull African Elephant. Although it was primarily a quadruped, its footprints show that it was capable of assuming a bipedal stance. When it stood on its hind legs it was about 6 m tall, twice the height of an elephant. This sloth, like a modern anteater, walked on the sides of its feet because its claws prevented it from putting them flat on the ground. Megatherium species were members of the abundant Pleistocene Megafauna, large mammals that lived during the Pleistocene epoch.”
What does it all mean? I dunno, but considering Crowley’s wicked sense of humor, occasionally aimed at himself and his avid interest in contemporary sciences… mayhaps the similarities were intentional. Or not.