✉news WarNuclear first seen 9 h ago, last 45 min ago, peak #8
Nuclear traces in whales' teeth reveal whales' life histories
Original: Nuclear traces in whales' teeth help scientists reconstruct their life stories
Scientists have found that traces of nuclear material deposited in whales' teeth can be used to reconstruct the animals' life stories, including their age and exposure to past nuclear events. By analysing chemical layers in the teeth, researchers can read them much like tree rings, offering a new tool for studying whale biology and the legacy of atmospheric nuclear testing in marine ecosystems.
Why now: The novel use of nuclear traces as a natural record of whale life histories is drawing attention to Cold War-era nuclear testing's lasting footprint in the oceans.
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