AI Summary

Paleontologists from China University of Geosciences examined penguin fossils from Seymour Island, Antarctica, using nondestructive X‑ray mapping to analyze the elemental composition of the bones. The study, published in Fossil Record, shows that the chemical signatures in the fossils record shifts in Antarctica’s climate over millions of years. The data reveal a transition from a warm, humid environment to a cooler world. The work demonstrates that ancient penguin bones can serve as chemical archives of past climate change.

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