I SAW A SEA TURTLE ON CAYMAN A COUPLE OF WEEKS AGO THAT LOOKED AS BIG AS A VOLKSWAGEN: Car-Sized Giant Turtle Discovered in Colombia Ate Alligators for Breakfast. “Paleontologists have discovered a car-sized turtle in a Colombian coalmine that may have eaten alligators and ruled a large swath of land and fresh water.” It was probably 6 feet long, but I don’t think it would have eaten an alligator.