400 year old shark still alive in Atlantic waters

Meet the Greenland shark. She was born sometime around 1620, making her over 400 years old. That means she was already swimming under Arctic ice when the Taj Mahal was being built and pirates were still a career option.

How do we know? Radiocarbon dating of her eye tissue. Scientists published the jaw-dropping results in Science, confirming this deep-sea grandma is the oldest vertebrate ever recorded.

And get this, Greenland sharks grow just 1 centimetre per year. So yeah, patience is literally in their DNA. They don’t even reach sexual maturity until they’re around 150 years old. That’s a long teenage phase.

These sharks live in the icy, pitch-black depths of the North Atlantic and Arctic Oceans. Low temperatures and slow metabolisms are part of the secret to their crazy-long lifespans. Their hearts beat like they're on chill mode forever.

Also, fun fact: they’re nearly blind, thanks to a parasite that latches onto their eyes. But don’t feel bad for them clearly, they’re outliving everything, including most natural history textbooks.

The discovery of this ancient shark didn’t just make headlines. It forced scientists to rethink how aging works in cold-blooded creatures. There’s still so much we don’t understand about deep-sea life, and this old lady just flipped the script.

So next time you're stressed about turning 30, just remember.
There’s a shark out there who survived four centuries, saw zero Netflix, and still hasn’t retired.