6. Warm-Blooded Dinosaurs
As we mentioned, paleontological knowledge categorized dinosaurs as being ancient reptiles, so they were cold-blooded. The fact that they’re connected to birds and that they had feathers, made scientists rethink their theory about cold-blooded dinos. Dinosaurs didn’t use the feathers to fly, but to keep them warm, and it’s now believed that all dinosaurs were actually warm-blooded.