A rock face on the Monte Conero anticline holds many paddle-like footprint tracks packed together on one surface, likely made by sea turtles.

In the spring of 2019, free climbers scaling the risky cliffs of Monte Cònero on Italy’s Adriatic coast noticed something that stopped them cold. High on pale slabs of limestone that tilt toward the ...

Footprints, however, do not need skeletons to tell their tale. The shapes held clues. Many marks were arched, as if a flipper brushed the bottom while the body hovered above. That differs from the ...