Biologists have discovered the long-lived creature on Earth
Oct 31, 2017 16:10:50 GMT
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Post by Διαμονδ on Oct 31, 2017 16:10:50 GMT
The most long-lived creatures on Earth are sessile deep-sea worms from the bottom of the Caribbean sea, some of which lived for more than 300 years, according to a paper published in the journal Science of Nature.
"Many individuals Escarpia laminata live up to 250 years and move across the border, which no other species never passed. Given errors in measurement of age for the longest individuals of this species, it is possible that some of them live even longer," says Alanna Durkin (Alanna Durkin) from temple University in Philadelphia (USA).
Earth centenarians traditionally considered to be large and slow inhabitants of the seas and sushi bowhead whales, some species of which lived more than 200 years, and Galapagos tortoises living in some cases up to 250-year anniversary. In addition, single known species of the Arctic bivalve mollusc Arctica islandica, whose age, according to current estimates, more than 500 years.
Scientists for quite a long time studying these animals, trying to understand what made them live so long, whether they suffer from cancer and other diseases. The secrets of their biology, as I hope you can use in order to extend the life of the person.
Durkin and her colleagues found even more long-lived species, studying the flora and fauna of the bottom of the deep water of the Caribbean sea. This type is better suited for experimentation and study than rare turtles and giant cetaceans.
Attention was drawn to a colony of sessile worm species Escarpia laminata is a large invertebrate that attaches to the bottom of the sea and living in one place my whole life. These worms live around hydrothermal vents and "black smokers" on the sea floor and feed on plankton and remains of other organisms that are caught from the water.
The unusually large length of the tubes of these worms, reaching in some cases 50-60 centimeters, has led scientists to test how fast is growing, "armor" these invertebrates. Watching worms throughout the year, biologists were surprised to find that the tube Escarpia laminata grow very slowly, about polukilometre a year, and the age of the longest individuals exceed 300 years.
The secret of their longevity is partly the fact that these worms almost die — the mortality rate in their colonies does not exceed 0.6% even for the elderly individuals, which is approximately 15 times lower than the values predicted by theory. Why is this happening, scientists still do not know, however, suggest that this is due to the low temperature of the waters in which they live Escarpia laminata and other deep-sea worms.
ria.ru/science/20170718/1498699599.html?inj=1
"Many individuals Escarpia laminata live up to 250 years and move across the border, which no other species never passed. Given errors in measurement of age for the longest individuals of this species, it is possible that some of them live even longer," says Alanna Durkin (Alanna Durkin) from temple University in Philadelphia (USA).
Earth centenarians traditionally considered to be large and slow inhabitants of the seas and sushi bowhead whales, some species of which lived more than 200 years, and Galapagos tortoises living in some cases up to 250-year anniversary. In addition, single known species of the Arctic bivalve mollusc Arctica islandica, whose age, according to current estimates, more than 500 years.
Scientists for quite a long time studying these animals, trying to understand what made them live so long, whether they suffer from cancer and other diseases. The secrets of their biology, as I hope you can use in order to extend the life of the person.
Durkin and her colleagues found even more long-lived species, studying the flora and fauna of the bottom of the deep water of the Caribbean sea. This type is better suited for experimentation and study than rare turtles and giant cetaceans.
Attention was drawn to a colony of sessile worm species Escarpia laminata is a large invertebrate that attaches to the bottom of the sea and living in one place my whole life. These worms live around hydrothermal vents and "black smokers" on the sea floor and feed on plankton and remains of other organisms that are caught from the water.
The unusually large length of the tubes of these worms, reaching in some cases 50-60 centimeters, has led scientists to test how fast is growing, "armor" these invertebrates. Watching worms throughout the year, biologists were surprised to find that the tube Escarpia laminata grow very slowly, about polukilometre a year, and the age of the longest individuals exceed 300 years.
The secret of their longevity is partly the fact that these worms almost die — the mortality rate in their colonies does not exceed 0.6% even for the elderly individuals, which is approximately 15 times lower than the values predicted by theory. Why is this happening, scientists still do not know, however, suggest that this is due to the low temperature of the waters in which they live Escarpia laminata and other deep-sea worms.
ria.ru/science/20170718/1498699599.html?inj=1
