A team of scientists discovered a new species of shark preserved in the walls of Mammoth Cave, an underwater cave system brimming with ancient species of fish.
Between 320 and 360 million years ago, Mammoth Cave began to form when the tides…
A team of scientists discovered a new species of shark preserved in the walls of Mammoth Cave, an underwater cave system brimming with ancient species of fish.
Between 320 and 360 million years ago, Mammoth Cave began to form when the tides…