Inside a 245-Million-Year-Old Sea Monster's Tummy!

For the first time ever, paleontologists have found a prehistoric sea reptile fossil so perfectly preserved that you can still see its actual stomach and intestines. This little swimming creature, called Austronaga minuta, lived long before the T-rex and had a surprisingly simple belly for such an amazing swimmer. Imagine what it must have eaten for its very last lunch millions of years ago!