Evans, an assistant professor of biosciences at Rice University in Houston, has spent the past few years scanning and searching wrasses — a family of marine fish — to learn how traits evolve in the family. He's been measuring skull shapes of different types, and it’s part of an initiative he's dubbed #BackDatWrasseUp.
“While I was placing landmarks inside the mouth of one of the fishes, I realized that the inside of the mouth was pretty crowded,” he told USA TODAY.
Sometimes, it’s food. But in this particular type of fish, Odax cyanollix, he found what looked like a small crustacean.
To read more on this story, click here: A Parasite Feasts on a Fish's Tongue Until it's Gone. Don't Worry, Humans Can't Get it
