A 2 million-year-old fossilized shark tooth found in Port Huron Michigan? Does this mean huge sharks used to?

Question

swim in the great lakes? How could a 120-foot long shark with 4 inch long teeth thrive in a fresh water lake???

This is weird !

http://www.ktar.com/?nid=399&sid=788838

Answer 1

I don't think the Great lakes are that old.So that guy who said it was carried there by other means is probably right.But I could be wrong.Interesting.

Answer 2

Its right