Illustration of Hurdia victoria by Marianne Collins. This marine predator lived 500 million years ago and reveals clues to the origins of arthropods. © J B Caron Royal Ontario Museum Anomalocaris ruled the Cambrian seas but apparently so did a twenty centimenter cousin. Hurdia victoria, originally described in 1912, was known from just a jumble . . . → Read More: 100 Word Post: Hurdia victoria