"If you're going to make extraordinary claims, you need extraordinary evidence," said researcher Lauren Sallan. Last year, two scientific papers claimed to have solved the Tully mystery. According to the two studies, the Tully Monster was definitively a vertebrate But the last thing that the Tully Monster could be is a fish. "Initially it was published as a worm," So the problem is, if it does have cup eyes, then it can't be a vertebrate