Why does this animal never age - Raymond Adkins
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Date: 2026-10-28
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Comments and reviews: 10
AtoExplains
What makes hydra feel 'ageless' is that its body column is mostly stem cells that never stop dividing. Older cells get pushed out toward the tentacles and foot and are shed, so the animal is constantly rebuilding itself rather than avoiding wear. Studies point to the FoxO gene as one key to keeping those stem cells active, and it's the same gene family linked to longevity in humans.
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What makes hydra feel 'ageless' is that its body column is mostly stem cells that never stop dividing. Older cells get pushed out toward the tentacles and foot and are shed, so the animal is constantly rebuilding itself rather than avoiding wear. Studies point to the FoxO gene as one key to keeping those stem cells active, and it's the same gene family linked to longevity in humans.
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Cephalotus1
I have have the green Hydra viridissima in my tanks. I love them, they sre amazing. I noticed they diminidh in mumbers just begire algae tank domination and return shortly after algae problrm is resolved by restoring chemical balanvce. So they are kind of indicator of wellbeing of a tank.
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I have have the green Hydra viridissima in my tanks. I love them, they sre amazing. I noticed they diminidh in mumbers just begire algae tank domination and return shortly after algae problrm is resolved by restoring chemical balanvce. So they are kind of indicator of wellbeing of a tank.
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draftandwonder
Abraham Trembley cutting a hydra in two in 1740 and watching both halves grow back is such a great experiment. If you could regrow one body part like a hydra, what would you pick
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Abraham Trembley cutting a hydra in two in 1740 and watching both halves grow back is such a great experiment. If you could regrow one body part like a hydra, what would you pick
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colindenzer9551
Just think, a tiny little hydra in a lab will outlive your entire life. There when you were born, and there when you die (so long as it’s fed and not bothered)
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Just think, a tiny little hydra in a lab will outlive your entire life. There when you were born, and there when you die (so long as it’s fed and not bothered)
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arminarlert1953
But if yiu divide the cells dont they get weaker as they are only copies of original Thats why we age right: so in Hydras they clone originals forever
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But if yiu divide the cells dont they get weaker as they are only copies of original Thats why we age right: so in Hydras they clone originals forever
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howaboutataste
I heard lakes in Tennesee have freshwater cnidarians.
We have freshwater cnidarians at home.
The freshwater cnidarians at home:
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I heard lakes in Tennesee have freshwater cnidarians.
We have freshwater cnidarians at home.
The freshwater cnidarians at home:
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OdysseyBrooks
The part where Tremblay cut it and it just regrew blew my daughter's mind she keeps asking if pond water is full of tiny superheroes.
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The part where Tremblay cut it and it just regrew blew my daughter's mind she keeps asking if pond water is full of tiny superheroes.
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ted_ed
Warning, if we try to achieve immortality by fusing our DNA with a strange species, we could easily end up creating Gears of War style Locust
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Warning, if we try to achieve immortality by fusing our DNA with a strange species, we could easily end up creating Gears of War style Locust
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BrooklyFire
Video: We know that you have ideas worth sharing
Me: I wonder if we can farm stem cells from abortions and inject them into ourselves
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Video: We know that you have ideas worth sharing
Me: I wonder if we can farm stem cells from abortions and inject them into ourselves
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RawRandomography
Wait, but I thought human aging was related to shortening telomeres. Do hydras’ not shorten Can someone explain this please
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Wait, but I thought human aging was related to shortening telomeres. Do hydras’ not shorten Can someone explain this please
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