Scientists just discovered an unknown species hidden in the world's longest cave

Scientists just discovered an unknown species hidden in the world's longest cave

Scientists have uncovered a previously unknown species of extinct shark deep within the labyrinth of Mammoth Cave in Kentucky — the world’s longest known cave system. The species, named Macadens olsoni, measured under a foot in length and stood out due to its highly unusual dental structure. It was likely to have feasted on mollusks and worms...