10/18/2025
Born before Shakespeare. Still gliding through the dark today.
Scientists studying Greenland sharks have revealed a jaw-dropping truth. These animals can live for centuries. One female was dated to about 392 years old, give or take. Some estimates suggest a few could pass 500.
Think about the time this spans. Plays written by Shakespeare. The American Civil War. Two world wars. The rise of the internet. A single life crossing it all, quiet and slow under Arctic ice.
How do we know? Researchers used radiocarbon dating on proteins in the sharks’ eye lenses. It’s like reading the rings of a tree, but in the eye. The data point to extreme longevity and very slow growth.
It doesn’t mean a scientist found a shark with a birthday cake marked 500. These are careful estimates with ranges. But even on the low end, it is extraordinary.
Longevity has a cost. These sharks mature very late, likely around 150 years, and produce few young. That makes them vulnerable. Cold seas, slow metabolism, long lives. They are built for patience, not pressure.
A creature that has seen so much history deserves a future. If anything, this discovery is a reminder to protect what moves unseen beneath the waves.
References
Eye lens radiocarbon reveals centuries of longevity in the Greenland shark - Science
Greenland shark, facts and photos - National Geographic
Greenland shark is the oldest vertebrate animal - The Guardian
How long do Greenland sharks live? - NOAA Ocean Service
Disclaimer: Images are generated using AI for illustration purposes only.
