The megalodon was the largest shark ever to have lived, believed to have reached 50 to 70 feet long. That's as long as three great white sharks! It was estimated to have weighed between 53 to 114 tons which is equal to as many as sixteen adult male African elephants. The word "megalodon" comes from two Greek words - megas, meaning big, and odont, meaning tooth. The megalodon did indeed have giant teeth - five rows of over 270 sharp teeth that could grow over 7 inches long and over 4 inches wide at the base. I guess what we are trying to say is you're going to need a bigger boat.