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Secrets of the immortal jellyfish


Posted on Saturday, 1 December, 2012 | Comment icon 17 comments


Image credit: Mila Zinkova

 
Could the secret to immortality be found within a particularly unusual species of jellyfish ?

German marine-biology student Christian Sommer had been researching small aquatic invertebrates off the cliffs of Portofino when he came upon an interesting and obscure species known as Turritopsis dohrnii. After spending time studying the specimens, Sommer started to realise that what he had found was something rather special. The strange creatures appeared to age in reverse, becoming younger and younger before repeating their life cycle over again.

Scientists would later describe this process as similar to a butterfly that turns back in to a caterpillar or even a chicken that turns back in to an egg before hatching again. In short, the species never dies - it just repeats its life cycle over and over. What Sommers had discovered was a form of life that could legitimately lay claim to the term 'immortal'.

"After several days he noticed that his Turritopsis dohrnii was behaving in a very peculiar manner, for which he could hypothesize no earthly explanation."

  View: Full article |  Source: New York Times

  Discuss: View comments (17)

   


 
Recent comments on this story
Comment icon #8 Posted by Imaginarynumber1 on 2 December, 2012, 7:48
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Comment icon #9 Posted by Simbi Laveau on 2 December, 2012, 8:09
Are you ever not a kill joy ?
Comment icon #10 Posted by Imaginarynumber1 on 2 December, 2012, 8:48
No. I don't like living in the Land of Make Believe.
Comment icon #11 Posted by The New Richard Nixon on 2 December, 2012, 20:07
Jellyfish can never been fully understood, so in my view this is still open as space. We don't know everything, he jealous that someone else claimed it first
Comment icon #12 Posted by little_dreamer on 3 December, 2012, 2:01
What happens if something eats the jellyfish?
Comment icon #13 Posted by pallidin on 3 December, 2012, 6:40
Probably not a good idea. One could easily die, I suppose. Especially if it includes their poison tenticles. Not sure about the main body though. Besides which, ingestion of long-lived species apparently does not transfer their longevity to the "eater" anyway.
Comment icon #14 Posted by The New Richard Nixon on 3 December, 2012, 20:18
yes you can eat jellyfish
Comment icon #15 Posted by Pinguin on 12 December, 2012, 7:38
Jellyfish are amazing creatures. It's fascinating what we find in this world.
Comment icon #16 Posted by OldN8Dogg on 18 December, 2012, 21:55
For those of you who would like to try: haha
Comment icon #17 Posted by Mr Right Wing on 19 December, 2012, 13:44
Mammals have already been de-aged in the laboratory. Estradiol activates your telemeres lengthening mechanisms. Its found in milk, beans, soya and some other foods. Its also found in many contraceptive pills and levels are higher in women than in men (thats why they live longer). I recommend a pint of whole milk per day for the rest of your life. If you're young now you'll make it to 200 so long as you dont go obese.


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