Tag: chondrichthyes
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Sharks are older than the dinosaurs. What’s the secret to their success?
Live Science has a shark story just in time for Shark Week. Yes, you read that correctly… sharks are much older than dinosaurs. Sharks evolved way back during the Ordovician Period, some 450 million years ago, while dinosaurs are relative youngsters at about 235 million years old. Sharks have made it though all the major…