Scorpions are so freakily primordial. The sea scorpions they descend from have been traced back almost half a billion years—and some were as big as us! They say sharks have been around longer than trees. Scorpions in their aquatic form may pre-date all land plants. www.science.org/content/arti...
1.7-meter-long predator cruised the seas of what is now Iowa about 467 million years ago
Keywords: "Ordovician period"—right after the Cambrian Explosion of diverse ocean critters—for anyone who wants to dig further. There's also recently-uncovered evidence that Earth may have had its own *ring* around this the time, raining down an unusual number of meteors at middle latitudes.
I thought you were talking about the band The Scorpions for a moment there, they been around since the 1960s and they still rock!