Spinosaurus

The Spinosaurus was one of the more intelligent dinosaurs.

The sail of this dinosaur could also have been used to ward off enemies. The dinosaur appeared to be twice its size when the sail was fully extended.

The spines of the Spinosaurus were more than 10 times the diameter of the vertebrae structures from which they extended.

Spinosaurus featured in the popular movie Jurassic Park 3.

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