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Here’s something you might not know about tortoises: They have nerve endings in their shells, which means they can feel it when you pet them. If you don’t believe it, watch Redfoot wiggle around when ...

The shells of chelonians—think turtles, tortoises, and sea turtles—grow in layers, keeping a time-stamped record of environmental conditions. Uranium has shown up in the layers of turtles’ and ...

Most of us have probably heard the symbolic tale of the race between the slow and steady tortoise and the fast, but overconfident, hare. While the lessons at the heart of this fable may serve as good ...