Once prevalent in every ocean except the Arctic and Antarctic, the leatherback population is ... depths of 4,200 feet—deeper than any other turtle—and can stay down for up to 85 minutes.

The leatherback lineage goes back a hundred million years—"it was on the beaches when T. rex was the primary predator," says Scott Eckert of the Wider Caribbean Sea Turtle Conservation Network ...

As ancient as the dinosaurs, the leatherback sea turtle is something of a dinosaur itself — and the heaviest reptile on the planet. This champion swimmer, whose diving capabilities are unmatched by ...