🧪🦈⛏️
In my latest @discovermag.bsky.social at Mammoth Cave, six new species of ancient sharks as well as rare 3D specimens, were preserved in a grainy material that was actually made of other skeletal animals like sea stars and shells.
www.discovermagazine.com/mammoth-cave...
Learn more about the ancient life that used to inhabit Mammoth Cave, and how the cave conditions were just right to help preserve some of these remains.
