A 399-Year-Old Shark Born in 1627 Reveals a Dark Truth About the Deep Ocean

  • تاريخ النشر: الإثنين، 25 مايو 2026 زمن القراءة: دقيقة قراءة

A 400-year-old Greenland shark unveils mysteries of age, growth, and human impact on deep-sea ecosystems.

Its Age Was Hidden in Its Eye

The “399-Year-Old” Shark Is Really an Estimate

It Grows at a Nearly Unimaginable Pace

It May Take More Than a Century to Mature

Bycatch Can Remove Centuries in Seconds

The Deep Ocean Runs on a Different Clock

Its Body May Hold Clues About Aging

Slow Does Not Mean Harmless

Its Survival Makes Human Timelines Look Small

The Real Warning Is About Fragility

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A Greenland shark estimated to be nearly 400 years old sounds like a creature from myth, but the science behind it is even stranger. Researchers did not read its age from bones or rings. They found the clue inside proteins formed before birth and preserved in the lens of its eye.

The headline number should be handled carefully: the famous study estimated the largest shark’s age at around 392 years, with an uncertainty range from 272 to 512 years. Even the lower estimate still makes the Greenland shark the longest-lived vertebrate known to science, and that is where the darker truth begins.

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