Spinosaurus had an unmistakable fan-shaped fin on its back.This vicious carnivore weighed several tons and could grow to fifty feet in length! Spinosaurus had a mouthful of sharp, straight teeth to help finish dinner. Dinner usually consisted of other dinosaurs or fish. Intelligently designed, the sail on its back performs many functions. For instance, this sail regulated temperature. Collecting heat or dispersing it, temperature is vital in cold-blooded dinosaurs. Also, it served to attract mates. Fun Facts: The fan-shaped fin could have been six feet tall!Zoological Name:Spinosaurus Conservation Status: Extinct Primary Habitat: Desert Global Home: AfricaScale: 1:40