751K views · 4.1K shares | Scientists believe that this aquatic dinosaur was the largest predator to ever roam the planet. | National Geographic | Facebook

A newfound fossil tail is changing what we know about Spinosaurus—and stretching our understanding of how and where dinosaurs lived. For more iconic storytelling like this, subscribe to National Geographic: https://on.natgeo.com/3aJdDvL | National Geographic