Molly Sampson's favorite Christmas present was the one she went out and got for herself that morning: a 5-inch-long Otodus megalodon tooth from a shark that lived millions of years ago.
The 9-year-old Maryland girl and her older sister, Natalie, had asked for and received insulated waders and fossil sifters so they could go shark tooth hunting further out in the waters of the Chesapeake Bay near the Calvert Cliffs, recalls Molly's mother, Alicia Sampson.
