Those amazing sharks: They don't get cavities and some can glow
Tuesday, August 6, 2013 - 17:20
in Paleontology & Archaeology
The Discovery Channel's Shark Week got off to a less-than-stellar start this weekend with a two-hour piece devoted to Megalodon, a prehistoric giant shark that grew up to 60 feet (18 meters) long and had jaws powerful enough to crush an automobile.