Megalodon sharks lived about to 28 million years ago in the Cenozoic Era. People think that the Megalodon is still out there and many think it's still extinct. Out in the ocean it's searched. They saw if Megalodons still exist they live really deep
A diver swims alongside a Greenland shark, a rarely-seen species that looks like it has been etched from stone. They can survive for more than 200 years at depths of up to 600 metres under Arctic ice. They grow to long and are so fearsome they hav
megalodon was a prehistoric shark that conservative estimates place at around 16 metres ft) long. For scale, the biggest example of the largest living fish species today -- the whale shark -- was metres ft).