Spinosaurus was one fascinating predator. Only recently discovered, and estimated at up to 18m long! What were the spines for; did they act as a sail, store fat, mating display, or heat dissipation?
Spinosaurus was one fascinating predator. Only recently discovered, and estimated at up to 18m long! What were the spines for; did they act as a sail, store fat, mating display, or heat dissipation?