Ancient Arthropod Was Shaped Like a Taco and Swam Upside-Down

Five hundred million years ago, tacos existed. But they weren’t corn or flour; they were the hard-shelled coverings on a now-extinct sea creature, Odaraia alata. According to new research, the Cambr… [+2824 chars]

Ancient Arthropod Was Shaped Like a Taco and Swam Upside-Down

Ancient Arthropod Was Shaped Like a Taco and Swam Upside-Down

Ancient Arthropod Was Shaped Like a Taco and Swam Upside-Down

Ancient Arthropod Was Shaped Like a Taco and Swam Upside-Down

Ancient Arthropod Was Shaped Like a Taco and Swam Upside-Down