Mosasaurus wasn't a dinosaur, but a giant marine reptile. elaborate
Plesiosaurs couldn't retract their heads into their shells (unlike some other marine reptiles, they didn't have shells). elaborate
Fossil hunting requires a lot of patience; most fossil hunters spend hours, or even days, finding only a few small fragments. elaborate
The fossilization process can take millions of years, but some exceptionally preserved fossils, like those found in amber, can show incredibly detailed soft tissue preservation. elaborate
Ammonites, despite their spiral shell, were active swimmers, not simply bottom dwellers. elaborate
Some dinosaurs had feathers! elaborate
Quetzalcoatlus had a wingspan that rivaled a small airplane, potentially reaching up to 36 feet (11 meters). elaborate