So a few animals retain primitive systems with the sole purpose of measuring ambient light—of which the most unusual is the leatherback sea turtle, one of the world’s largest reptiles.

Once prevalent in every ocean except the Arctic and Antarctic, the leatherback population is ... between breeding and feeding areas of any sea turtle, averaging 3,700 miles each way.

A leatherback sea turtle was spotted on New Smyrna Beach, marking the earliest recorded sea turtle nest on County-managed ...

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 ...

MARTIN COUNTY, Fla. (WFLA) — A giant leatherback sea turtle got a personal escort back to the open ocean after taking a wrong turn into boat traffic. What could have ended in a heartbreaking ...

But the same can't be said for all species of sea turtle. The numbers of some species are still decreasing, like leatherback turtle populations in the Pacific Ocean and Caribbean Sea. Leatherbacks ...

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 ...