This is the real reason world's biggest shark megalodon was wiped out

The huge and powerful marine monster would have been outcompeted for resources by smaller and nimbler rivals. Evidence comes from its tiny placoid scales - the first discovery of its kind

Related Keywords

Japan , Depaul University , Illinois , United States , Chicago , Jason Statham , Kenshu Shimada , Professor Kenshu Shimada , Great White , Sharks , Swimming , Dolphins ,