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 ...
Turtles and tortoises, though related, exhibit key differences. Turtles are primarily aquatic with streamlined shells and webbed feet, suited for swimming and varied diets. Tortoises are land-based, ...
An 11-year-old rock hunter has uncovered an almost complete turtle shell dating to roughly 48 million years ago. That intact shell secured a rare glimpse into a vanished river world before weather ...
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