ancient creatures

I just though we start with THE MEGALODON.This predator went extinct over 2.6 million years ago or it didn't. There had been sightings of this ancient predator but no pictures.all we have today are its teeth. It was as large as school bus and weighted 50 tons. How scientist know? Well its closest relative is the great white. The megalodon's teeth are large enough for you to lie in!

teeth

THE MEGALODON

A BOAT

A HUMAN