The Most Bizarre and Unexplainable Things to Ever Drift Ashore

Part of an 80-million-year-old fossil thighbone found embedded in marine rock in Washington’s San Juan islands provided the first evidence that dinosaurs once roamed the state. Paleontologists discovered the femur while looking for fossilized signs of other extinct animals, and the rock was so hard that it took an entire day to pry the fossil out. Though it is unclear what species of dinosaur the bone belonged to, the scientists eventually identified it as a theropod — a type of meat-eating dinosaur.