Most animals have their own version of tree rings – here’s how we biologists use them to help species thrive
Narwhal tusks reveal how they're affected by declining Arctic ice. Saifullahphtographer We have a natural fascination with time – how landscapes have been carved over millennia, how our bodies grow and sag with age, how the stars traverse the sky each night. Scientists probe the layers beneath our feet to understand the secrets of our […]
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