Shark, Mammoth Cave

New research reignites debate over the size of this extinct giant, also suggesting it looked unlike a great white ...
A shark no larger than a human hand that stalked the ancient sea floor 340 million years ago has been dubbed the “chipmunk ...
"If you stay in a skinnier body, there is a better chance of being able to grow larger," Shimada said. This principle applies to megalodon, which according to Shimada's new study could have been up to ...
A new study proposes that the massive ancient shark was built more slenderly than a great white. But not all paleontologists agree. This illustration of megalodon may be wrong. The ancient ...