Science Why did a 60-foot long shark go extinct? (+video)

The Megalodon, an enormous marine predator, disappeared some 2.6 million years ago, new research finds.

By , LiveScience

Giant, 60-foot-long (18 meters) Megalodon sharks used to lurk in the Earth's oceans, but while researchers are still unsure why these behemoths of the deep went extinct, scientists now have a better estimate for when it happened.