ALERT: Due to inclement weather, the National Aquarium will be closed on Wednesday, February 20, 2019.

Greenland Sharks Can Live for Centuries!

New research shows that Greenland sharks may live longer than any other vertebrate species on Earth..

Published August 16, 2016

Using radiocarbon dating technology, scientists have been able to study the age of Greenland sharks in a completely new way. They measured the eye lens nuclei from 28 female sharks. The tests revealed lifespans of at least 272 years!

greenland-shark

Most sharks, on average, live to be less than 100 years old. Other aquatic animals, such as dolphins and seals, have lifespans of less than 50 years. This new insight into the longevity of Greenland sharks gives scientists clues into their ability to thrive in an artic environment. 

Research also showed that Greenland sharks do not reach maturity until 150 years old. Those extremely cold waters allow them to move slowly and keep their internal body temperature cool. Scientists believe that this contributes to their longevity.

Without many natural predators, the biggest threat to these sharks is warming waters. Their long lifespan makes them more susceptible to changes in their environment, especially prior to maturity. Sharks need to reach at least 150 years old to reproduce and therefore sustain their species.

To read more about the research findings, check out this article in Science


Previous Post

Featured Stories

Marie Tharp the harp seal Animal Rescue Update: Harp Seal Admitted

National Aquarium Animal Rescue is currently caring for a female harp seal nicknamed Marie Tharp.

Read the full story

Cold-stunned turtle on beach Rescue to Release, Part 1: Is Climate Change Increasing Cold-Stunned Turtles?

Every year, when cold weather starts to hit the East Coast, hundreds of endangered, cold-stunned sea turtles wash ashore in Cape Cod Bay.

Read the full story

Related Stories

A Swell Shark Surprise

Published July 26, 2018

You Asked, We Answered: Do Sharks Suffer from Cold-Stunning?

Published January 30, 2018