Megalodon shark was longer than a bus

A 3D model of a colossal shark that roamed the oceans millions of years ago suggests that the beast was 16 metres long and could have eaten a whale in just a few bites. Few megalodon fossils exist, but researchers were able to create the digital model using a rare collection of vertebrae and teeth, as well as scans of modern great white sharks (Carcharodon carcharias). They calculated that the ancient creature weighed around 70 tons — as much as ten elephants— and that its open jaw stretched to 2 metres wide.