Researchers have uncovered the ancient fossil remains of a small prehistoric shark deep inside MammothCave in Kentucky, USA, the world’s longest known cave system ... Honoring Mammoth Cave and its scientists.
About 10-15 million years ago, rainwater and surface water had sufficiently seeped into the ground, beginning to carve out passageways, which would become part of the world’s longest cave system.
The new species is just one in a whole treasure trove of ancient sharks that have been uncovered within the world’s longest cave system as part of ongoing research that aims to survey national parks ...