Episode · Arctic Ocean · 11 September 2026

There's a Shark in the Arctic That May Be 400 Years Old. Here's How We Know

Name: There's a Shark in the Arctic That May Be 400 Years Old. Here's How We Know
Uploaded: 2026-09-11
Duration: 3 min
Description: The Greenland shark and the radiocarbon in its eye lenses.

The Greenland shark and the radiocarbon in its eye lenses.

The footnote on the shirt

¹ Radiocarbon dating of eye lens nuclei gives the Greenland shark a life span of at least 272 years.

Nielsen et al., Science, 2016

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