But that’s exactly what scientists believe they have found in the form of one massive Greenland shark swimming in the icy waters of the Arctic Ocean.
The
shark is estimated to be up to 512 years old, which would make it the oldest
living vertebrate in the world and even older than Shakespeare. And you thought
turning 30 made you ancient.
Greenland sharks have been known to live for hundreds of years and spend most of their lives swimming around looking for a mate. That’s a long time to wait.
They
also grow at a rate of one centimetre a year, enabling scientists to determine their age by measuring their
size.
This
particular shark, one of 28 Greenland sharks to be analysed by the scientists,
was measured at 18 feet in length and weighed over a tonne,
meaning it could be anywhere between 272 and 512 years old.
The
shark’s potential age was revealed in a study in the Science journal, according
to the Sun.
If
scientists have got the shark’s age right, it would
have been alive during major historical events like the founding of the US, the
Industrial Revolution and both World Wars. Crikey.
Greenland sharks mostly eat fish but have never actually been
observed hunting. Some have even been found to have reindeer and even horse
remains in their stomachs. The animal is a delicacy in Norway but its flesh is
poisonous if not treated properly.
Because of their longevity, academics in Norway believe that the bones and tissues of Greenland sharks may give us insight into the impact of climate change and pollution over a long period of history.
Oldest Shark in the World – 512 Year Old Greenland Shark
Researchers
at the Arctic University of Norway are currently mapping the animal’s DNA,
looking at its genes to learn more about what determines life expectancy in
different species, including humans.
As
many of the sharks pre-date the Industrial Revolution and large-scale commercial fishing,
the sharks have even been called ‘living time capsules’ that could help shed
light on how human behaviour impacts the oceans.
“The
longest living vertebrate species on the planet has formed several populations
in the Atlantic Ocean,” said Professor Kim Praebel at a
symposium organized by the Fisheries Society of the British Isles.
“This is important to know, so we can develop appropriate
conservation actions for this important species.”
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