Have you ever wonder why some creatures do really have long life? I find this 10 list from a blog and it’s amazing to find out that there really are immortal animals.
Secret to long life?
There are tortoises alive today that were 25 to 50 years old when Charles Darwin was born.
There are whales swimming the oceans with 200-year-old ivory spear points embedded in their flesh. There are cold-water sponges that were filter-feeding during the days of the Roman Empire.
In fact, there are a number of creatures with life spans that make the oldest living human seem like a spring chicken in comparison.
Here’s our list of the 10 animals with the longest life spans.
1 – Geoducks
They are characterized by their long ‘necks’, or siphons, which can grow to over 1 meter long.
2 – Tuataras
The two species of tuatara alive today are the only surviving members of an order which flourished about 200 million years ago — they are living dinosaurs.
They are also among the longest-lived vertebrates on Earth, with some individuals living for anywhere between 100 and 200 years.
3 – Lamellibrachia tube worms
They have been known to live 170 years, but many scientists believe there may be some that have lived for more than 250 years.
4 – Red sea urchins
It lives in shallow, sometimes rocky, waters from the low-tide line down to to 90 meters, but they stay out of extremely wavy areas.
They crawl along the ocean floor using their spines as stilts. If you discover one, remember to respect your elders — some specimens are more than 200 years old.
5 – Bowhead whales
Some bowhead whales have been found with the tips of ivory spears still lodged in their flesh from failed attempts by whalers 200 years ago.
The oldest known bowhead whale was at least 211 years old.
6 – Koi
The are common in artificial rock pools and decorative ponds. Amazingly, some varieties are capable of living more than 200 years.
The oldest known koi was Hanako, a fish that died at the age of 226 on July 7, 1977.
7 – Tortoises
One of their oldest known representatives was Harriet, a Galapagos tortoise that died of heart failure at the age of 175 years in June 2006 at a zoo owned by the late Steve Irwin.
Harriet was considered the last living representative of Darwin’s epic voyage on the HMS Beagle.
An Aldabra giant tortoise named Adwaita died at the rumored age of 250 in March 2006.
8 – Ocean quahog
The ocean quahog (Arctica islandica) is a species of clam that is exploited commercially. Researchers have interpreted the dark concentric rings or bands on the shell as annual marks, much like a tree has rings.
Some collected specimens have been calculated to be more than 400 years old.
9 – Antarctic sponge
Some estimate the oldest known specimens are 1,550 years old.
10 – Turritopsis nutricula jellyfish
This species of jellyfish might be the only animal in the world to have truly discovered the fountain of youth.
Since it is capable of cycling from a mature adult stage to an immature polyp stage and back again, there may be no natural limit to its life span.
Because they are able to bypass death, the number of individuals is spiking.
“We are looking at a worldwide silent invasion,” says Dr. Maria Miglietta of the Smithsonian Tropical Marine Institute.
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