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Top 10 Animals Who Live Longer E-mail
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Last Updated ( Saturday, 15 May 2010 )
 
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Red sea urchin

Top 10 Animals Who Live Longer

The red sea urchin or Strongylocentrotus franciscanus is found only in the Pacific Ocean, primarily along the West Coast of North America. 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.

Turtles

Top 10 Animals Who Live Longer

Tortoises are considered the longest living vertebrates on Earth. One of their oldest known representatives was Harriet, a Galápagos 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.

Geoducks

Top 10 Animals Who Live Longer

First on the list are these large saltwater clams that are native to the Puget Sound and have been known to live for at least 160 years. They are characterized by their long ‘necks’, or siphons, which can grow to over 1 meter long.

Tuataras

Top 10 Animals Who Live Longer

The word “dinosaur” is commonly used to describe an old person, but when it refers to a tuataras, the term is as literal as it is metaphorical. 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.

Lamellibrachia tube worms

Top 10 Animals Who Live Longer

These colorful deep sea creatures are tube worms (L. luymesi) that live along hydrocarbon vents on the ocean floor. They have been known to live 170 years, but many scientists believe there may be some that have lived for more than 250 years.

Bowhead whales

Top 10 Animals Who Live Longer

Also known as the Arctic whale, the bowhead is by far the longest living mammal on Earth. 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.

Koi

Top 10 Animals Who Live Longer

Koi are an ornamental, domesticated variety of the common carp. 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.

Ocean quahog

Top 10 Animals Who Live Longer

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

Antarctic sponge

Top 10 Animals Who Live Longer

Perhaps due to the extremely low temperatures of the Antarctic Ocean, this immobile creature has an extremely slow growth rate. Some estimate the oldest known specimens are 1,550 years old.

Turritopsis Nutricula Jellyfish

Top 10 Animals Who Live Longer

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.


Users' Comments (1) RSS feed comment
Posted by S poojary, on 01-08-2011 07:42, , Guest
marvellous
 

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