The science behind measuring the biggest shark to ever exist

The giant prehistoric Carcharocles megalodon (or Otodus megalodon for some researchers) was the largest predatory shark to ever swim in Earth’s seas. Scientific evidence points to megalodon having lived between 16 million and 2.6 million years ago, going extinct at the end of the Pliocene Epoch when the world’s oceans were much colder than today’s.