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Science/Tech
See other Science/Tech Articles

Title: Scientists Kill Ming the Clam, The World's Oldest Living Creature
Source: UK Telegraph
URL Source: http://www.telegraph.co.uk/news/mai ... m128.xml&CMP=ILC-mostviewedbox
Published: Oct 30, 2007
Author: Telegraph
Post Date: 2007-10-30 00:53:20 by Minerva
Keywords: None
Views: 188
Comments: 7

t has been christened Ming and it's officially the oldest animal to have ever lived.

A British scientific team discovered the 405-year-old clam, named after the Chinese dynasty and not the former Liberal Democrat leader, at the bottom of the ocean, and hope its longevity will reveal the secrets of ageing.

The oldest creature ever

So significant is the find that Help The Aged have awarded a £40,000 grant to the team to investigate how the molusc, born when Queen Elizabeth I was on the throne and William Shakespeare was writing The Merry Wives of Windsor, has survived over the centuries.

The record-breaking shellfish, 31 years older than the previous oldest animal, another clam, was caught last year when scientists from the Bangor University School of Ocean Sciences were dredging the seabed north of Iceland.

The "Arctica islandica" was among a haul of 3,000 empty shells and 34 live molluscs taken to the laboratory.

Unfortunately, by the time its true age had been established Ming was already dead. But the scientists aged the 3.4in clam from its shell which like trees has a layer or ring of growth for every year that the animal has been alive.

The shell only grows in summer when the water is warmer and the plankton it eats is plentiful.

Each year a layer as thin as 0.1mm is laid down.

When Dr Alan Wanamaker, one of the researchers, cut the clam's shell in half, he counted 405 lines.

The clam far outlives other venerable animal species such as the Galapagos tortoise (the oldest known specimen of which lived for 176 years) and the bowhead whale (130 years).

Its age makes the ocean quahog a remarkable environmental sentinel, because the exact thickness of each layer in its shell is determined by the state of its environment at the time it grew.

"It was a large animal so I expected it to be old," said Dr Wanamaker. "But we never expected it to be so extraordinarily old. I knew that the previous record was 374 years and so when I realised it was older I called a colleague to verify it."

The shellfish was dredged as part of a study into climate change over the centuries but because of its extreme age it is now also being investigated by a team of biologists looking into ageing.

"Al rushed up to my office to announce that they had found a record-breaker," said team member Prof Chris Richardson. "If, in Arctica islandica, evolution has created a model of successful resistance to the damage of ageing, it is possible that an investigation of the tissues of these real life Methuselahs might help us to understand the processes of ageing."

Richard Faragher, a gerontologist at Brighton University working with the Bangor team, said: "Most of what we know about the ocean quahog is what it tastes like. We need to find out how it retains muscle strength, remains cancer-free and keeps its nervous system intact over such a long period of time."

It must have come as an unpleasant shock to the Iceland clam to be scraped up after more than four centuries of doing virtually nothing - the quiet, safe life of a clam, according to Faragher, could explain its longevity.

"It has the most boring life," he said. "It even has a low rate of reproduction."

Perhaps not surprisingly, the sexual capacity of the 405-year-old clam is described by the scientists as "spent".

"It may be that reproduction has given up by that age," said Prof Richardson.

Mike Foster, a spokesman for the research arm of Help the Aged, said: "This discovery is not just a curiosity - it is a chance to discover how it remains fit and healthy for hundreds of years."

According to the Guinness Book of Records, the existing record for the longest-lived animal belongs to a 220 year old Arctica clam collected in 1982 from American waters.

Unofficially, the record belongs to a 374 year old Icelandic clam in a German museum.

The oldest ever...

Tree, bristlecone pine: USA: 4,844 (years)

Fish, lake sturgeon: 154

Mammal: bowhead whale: 130

Human: Jeanne Calment: 122

Macaw: 106

Elephant: 78

Horse: 62

Japanese salamander: 55

Herring gull: 49

Bat: 32

Dog: 24

Rabbit: 18

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#1. To: Minerva, *Agriculture-Environment* (#0)

ping

Fox News Channel is the television version of Free Republic

freepatriot32  posted on  2007-10-30   6:02:45 ET  Reply   Trace   Private Reply  


#2. To: Minerva (#0)

Macaw: 106

I was thinking of buying a parrot, but I'm not sure now that I want to get something that will not only outlive me but my kids.

Rupert_Pupkin  posted on  2007-10-30   16:43:19 ET  Reply   Trace   Private Reply  


#3. To: Rupert_Pupkin (#2)

People plant trees that long outlive them.

To reason, indeed, he was not in the habit of attending. His mode of arguing, if it is to be so called, was one not uncommon among dull and stubborn persons, who are accustomed to be surrounded by their inferiors. He asserted a proposition; and, as often as wiser people ventured respectfully to show that it was erroneous, he asserted it again, in exactly the same words, and conceived that, by doing so, he at once disposed of all objections. - Macaulay, "History of England," Vol. 1, Chapter 6, on James II.

aristeides  posted on  2007-10-30   16:47:16 ET  Reply   Trace   Private Reply  


#4. To: Minerva (#0)

Dammit, they killed Mingie.

Wonder how he tasted?

Honi soit qui mal y pense

Mekons4  posted on  2007-10-30   16:49:25 ET  Reply   Trace   Private Reply  


#5. To: Minerva (#0)

"It does not take a majority to prevail, but rather an irate, tireless minority, keen on setting brush fires of freedom in the minds of men." -- Samuel Adams (1722-1803)‡

ghostdogtxn  posted on  2007-10-30   16:50:05 ET  Reply   Trace   Private Reply  


#6. To: aristeides (#3)

Some parrots outlive their owners too.

Ron Paul for President - Join a Ron Paul Meetup group today!

robin  posted on  2007-10-30   16:50:12 ET  Reply   Trace   Private Reply  


#7. To: Minerva (#0)

"It does not take a majority to prevail, but rather an irate, tireless minority, keen on setting brush fires of freedom in the minds of men." -- Samuel Adams (1722-1803)‡

ghostdogtxn  posted on  2007-10-30   16:51:43 ET  Reply   Trace   Private Reply  


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