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Nuclear traces in whale teeth reveal whales' life histories
Original: Nuclear traces in whales' teeth help scientists reconstruct their life stories
Scientists have found that nuclear traces preserved in whales' teeth can be used to reconstruct the animals' life stories. By analysing chemical signatures laid down over time, researchers can piece together details of individual whales' histories, offering a new tool for studying the long-lived marine mammals.
Why now: New research showing whale teeth hold nuclear traces that reveal individual life histories is drawing attention.
Evidence
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