The possibility that the age of a shark, which is said to be "the oldest vertebrate" that was discovered in 2016, is over 500 years old emerged
Researchers investigated the age of sharks which are presumed to be "the oldest vertebrate on the earth" that was found off the coast of Greeland and found out the possibility that it is over 500 years old.
Eye lens radiocarbon reveals centuries of longevity in the Greenland shark (Somniosus microcephalus) | Science
http://science.sciencemag.org/content/353/6300/702
512-Year-Old Shark, Believed To Be Oldest Living Vertebrate, Found In North Atlantic
http://www.ibtimes.com/512-year-old-shark-believed-be-oldest-living-vertebrate-found-north-atlantic-2628368
In 2016 the research team of Dr. Julius Nielsen, a marine biologist at the University of Copenhagen, discovered a Nishionon shark, 502 cm in length off the coast of Greenland. As it is known that this shark slowly grows at a pace of 1 centimeter per year, he has published a paper in Science Journal Science as being the oldest vertebrate living nearly 400 years .
Dr. NielsenRadioactive carbon datingUsing the mathematical model to analyze age from the shark lens and cornea using the shark, it was estimated that the age of 28 sharks discovered was "392 years old" as the oldest age, It is estimated that it is at least 272 years old and up to 512 years old because the error range is 120 years. The oldest record of vertebrate species found so far was 211 years old of polar bear, so Nishionon shark has updated the oldest record significantly. If it is assumed that the oldest individual is the highest 512 years old, it was born in the first half of the 16th century, it will be living from the era of Galileo and Galilei in the West and from the Sengoku period in Japan.
According to Dr. Nielsen, the polar bear meat was discovered from the stomach of the discovered Nishionidokame. However, it seems that there is a high possibility of eating the polar bear carcasses, not predating polar bears.
Ancient LIVING shark born in 1500 s is world's OLDEST vertebrate and could be 512 years oldhttps://t.co/Remj3nLJP2pic.twitter.com/KyGG8BhuTa
- Daily Star (@ Daily_Star)December 12, 2017
Dr. Nielsen believes that why the Nishionded shark is so long longevity has not yet been elucidated, but it is highly probable that living in cold seawater and having a very slow metabolism is involved. Nishionded shark has attracted attention not only from the behavioral studies of sharks but also from genetic research that brings longevity.
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