Prehistoric Sharks Shark Week : Season 11 Episode 1
TV-14 Discovery 43m
Aired: August 9th, 1998 @ 8:00 PM EST on Discovery
A menacing predator the size of a Greyhound bus roamed Earth's ancient oceans making meals of whales. This "megatooth" is believed to weigh 20 times more than a large great white today.
