Zoobooks- Sharks


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By: John Bonnett Wexo

Sharks are ancient. Before there were dinosaurs, there were sharks. Their bodies and behaviors have changed very little over time—they have always been chillingly efficient at finding food and consuming it. Great white sharks are the largest meat-eating fish alive today—but there were once sharks that may have been three times bigger. Scientists say the extinct Carcharodon megalodon had teeth six inches long, and jaws big enough to swallow a small car.