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(Science Alert)   Five hundred million years later they're still not eating or shiatting but keep thriving   (sciencealert.com) divider line
    More: Interesting, Symbiosis, Metabolism, Bacteria, Photosynthesis, symbiotic relationship, bacteria buddies, electron microscopy, chemosynthetic symbiotic bacteria  
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3034 clicks; posted to Geek » on 13 Apr 2019 at 10:42 PM (9 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



26 Comments     (+0 »)
 
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2019-04-13 08:39:14 PM  
But enough about republicans.
 
2019-04-13 09:57:57 PM  
These groovy creatures also reproduce asexually by splitting their bodies and growing new worms from the bits.

It seems the secret to immortality is not having sex.
 
jbc [TotalFark]
2019-04-13 10:52:31 PM  

WTFDYW: But enough about republicans.


But Republicans crap on everything.
 
2019-04-13 11:28:42 PM  
When we finally find life on another world, I don't think it will be as weird as some of the lifeforms we have right here.
 
2019-04-13 11:36:33 PM  
The worm uses everything the bacteria feed it with nothing left to excrete. Now that's efficiency.
 
2019-04-13 11:46:42 PM  
If the worm has no mouth then how are the bacteria getting stuff to eat?
 
2019-04-13 11:52:18 PM  
 Apparently "thriving" now means hanging around naked, jobless, with no hobbies, and mooching off of bacteria. No thanks!
 
2019-04-14 12:20:21 AM  
It has to excrete something. It's basic entropy. And what it excretes should be easy to detect. These scientists need better supervision.
 
2019-04-14 01:14:54 AM  

Pointy Tail of Satan: It has to excrete something. It's basic entropy. And what it excretes should be easy to detect. These scientists need better supervision.


I have it on good authority that women don't poop, though, so such a thing is possible.

/it's science
 
2019-04-14 02:25:49 AM  

fusillade762: These groovy creatures also reproduce asexually by splitting their bodies and growing new worms from the bits.

It seems the secret to immortality is not having sex.


So you're saying there are Farkers that will be around forever?
 
2019-04-14 02:58:34 AM  

Pointy Tail of Satan: It has to excrete something. It's basic entropy. And what it excretes should be easy to detect. These scientists need better supervision.


Why? If it is 100% efficient, it can deal with physical "waste" by growing.

It is more likely that they store the random bits that they can't deal with at or near the location where they split in 2 worms. Making it so that everytime they reproduce, the waste is expelled during the splitting. This is also so obvious, as I thought of it within minutes of reading about it, that I'm certain it has been checked.
 
2019-04-14 04:15:14 AM  

DerAppie: Pointy Tail of Satan: It has to excrete something. It's basic entropy. And what it excretes should be easy to detect. These scientists need better supervision.

Why? If it is 100% efficient, it can deal with physical "waste" by growing.

It is more likely that they store the random bits that they can't deal with at or near the location where they split in 2 worms. Making it so that everytime they reproduce, the waste is expelled during the splitting. This is also so obvious, as I thought of it within minutes of reading about it, that I'm certain it has been checked.


via wikipedia:
Most platyhelminths have no anus and regurgitate undigested material through the mouth. However, some long species have an anus and some with complex, branched guts have more than one anus, since excretion only through the mouth would be difficult for them.[7]
 
2019-04-14 05:55:35 AM  

Tom Marvolo Bombadil: DerAppie: Pointy Tail of Satan: It has to excrete something. It's basic entropy. And what it excretes should be easy to detect. These scientists need better supervision.

Why? If it is 100% efficient, it can deal with physical "waste" by growing.

It is more likely that they store the random bits that they can't deal with at or near the location where they split in 2 worms. Making it so that everytime they reproduce, the waste is expelled during the splitting. This is also so obvious, as I thought of it within minutes of reading about it, that I'm certain it has been checked.

via wikipedia:
Most platyhelminths have no anus and regurgitate undigested material through the mouth. However, some long species have an anus and some with complex, branched guts have more than one anus, since excretion only through the mouth would be difficult for them.[7]


Sure, that would work for "most". The specific however "has neither mouth, butt, nor gut ".
 
2019-04-14 08:08:26 AM  

MechaPyx: If the worm has no mouth then how are the bacteria getting stuff to eat?


The bacteria consume and live on what the worm would normally need to excrete. The bacteria excrete what the worm needs to consume to live.
 
2019-04-14 08:46:59 AM  

SBinRR: When we finally find life on another world, I don't think it will be as weird as some of the lifeforms we have right here.


Read Solaris or Fiasco, by Stanislaw Lem.
 
2019-04-14 10:43:07 AM  

LZeitgeist: MechaPyx: If the worm has no mouth then how are the bacteria getting stuff to eat?

The bacteria consume and live on what the worm would normally need to excrete. The bacteria excrete what the worm needs to consume to live.


I don't see how this little miracle of a perpetual motion machine doesn't run out of gas after awhile. It's somehow achieved a perfect conversion rate and nothing is wasted or lost to entropy or decay? And it's somehow born with all the resources it will ever need and doesn't need to acquire more to grow or heal injury?
 
2019-04-14 11:19:30 AM  

MechaPyx: LZeitgeist: MechaPyx: If the worm has no mouth then how are the bacteria getting stuff to eat?

The bacteria consume and live on what the worm would normally need to excrete. The bacteria excrete what the worm needs to consume to live.

I don't see how this little miracle of a perpetual motion machine doesn't run out of gas after awhile. It's somehow achieved a perfect conversion rate and nothing is wasted or lost to entropy or decay? And it's somehow born with all the resources it will ever need and doesn't need to acquire more to grow or heal injury?


Everything has a limited lifespan. This one apparently works until it doesn't anymore.
 
2019-04-14 11:35:42 AM  

LZeitgeist: MechaPyx: LZeitgeist: MechaPyx: If the worm has no mouth then how are the bacteria getting stuff to eat?

The bacteria consume and live on what the worm would normally need to excrete. The bacteria excrete what the worm needs to consume to live.

I don't see how this little miracle of a perpetual motion machine doesn't run out of gas after awhile. It's somehow achieved a perfect conversion rate and nothing is wasted or lost to entropy or decay? And it's somehow born with all the resources it will ever need and doesn't need to acquire more to grow or heal injury?

Everything has a limited lifespan. This one apparently works until it doesn't anymore.


It has to take in nutrients somehow.  Otherwise the daughter worms wouldn't grow into adulthood.  Every asexual splitting would just result in smaller and smaller worms.
 
2019-04-14 11:35:54 AM  

Pointy Tail of Satan: It has to excrete something. It's basic entropy. And what it excretes should be easy to detect. These scientists need better supervision.


Isn't cell waste the unneeded byproduct of chemical reactions performed at the cellular level to create the chemicals the cells incorporate in their growth? If the bacteria are delivering only those chemical products which are needed, they I see no need for any sort of wastage. The only byproduct, if any, will be heat.
 
2019-04-14 11:45:03 AM  

LZeitgeist: MechaPyx: If the worm has no mouth then how are the bacteria getting stuff to eat?

The bacteria consume and live on what the worm would normally need to excrete. The bacteria excrete what the worm needs to consume to live.


Interesting comment.

Even taking use of heat into account, this is dangerously close to a perpetual motion machine. Or "those two Chinamen (or Irishmen, or Wall Street Yuppies) who become fabulously rich simply by selling laundry services (or potatoes, or stock futures options) to each other."

On the other hand, isn't that exactly what the entire Earth ecosystem is? It's all the same stuff, traded back and forth. The only additions are moderately energetic photons from the sun and a smattering of rock, water, and random stardust from matter in-fall.

And then what of the Universe as a whole?
 
2019-04-14 12:45:36 PM  
FTA: "They use the reaction between carbon dioxide and hydrogen sulfide to produce organic compounds, which then feed the worms.
These foods contain lipids and proteins, and probably also sugars, fatty acids, and vitamins."

I seem to recall a famous scientist making waves about 25 years ago by claiming that oil was theoretically a renewable resource, and that deep in the earth's crust lived anaerobic bacteria that consumed in a similar fashion as this and when they died: voila! Oil, which would gradually seep together from small deposits into larger ones and gradually push up closer to the surface, refilling existing deposits.

Considering what this bacteria eats, I would be interested in testing that theory by injecting this species into existing, low-production eastern NM and West Texass oil wells that are currently producing more H2S than natural gas and oil, and are being fracked with CO2. It's time to find some high H2S & CO2 wells that have petered out, inject this critter, and then wait @ 20 years to see if production is substantially better than in a control group set of similar wells in similar dried out formations.
 
2019-04-14 01:25:28 PM  

Xythero: LZeitgeist: MechaPyx: LZeitgeist: MechaPyx: If the worm has no mouth then how are the bacteria getting stuff to eat?

The bacteria consume and live on what the worm would normally need to excrete. The bacteria excrete what the worm needs to consume to live.

I don't see how this little miracle of a perpetual motion machine doesn't run out of gas after awhile. It's somehow achieved a perfect conversion rate and nothing is wasted or lost to entropy or decay? And it's somehow born with all the resources it will ever need and doesn't need to acquire more to grow or heal injury?

Everything has a limited lifespan. This one apparently works until it doesn't anymore.

It has to take in nutrients somehow.  Otherwise the daughter worms wouldn't grow into adulthood.  Every asexual splitting would just result in smaller and smaller worms.


It could take in a bunch of water soluble stuff through the skin.
 
2019-04-14 01:49:53 PM  

Xythero: LZeitgeist: MechaPyx: LZeitgeist: MechaPyx: If the worm has no mouth then how are the bacteria getting stuff to eat?

The bacteria consume and live on what the worm would normally need to excrete. The bacteria excrete what the worm needs to consume to live.

I don't see how this little miracle of a perpetual motion machine doesn't run out of gas after awhile. It's somehow achieved a perfect conversion rate and nothing is wasted or lost to entropy or decay? And it's somehow born with all the resources it will ever need and doesn't need to acquire more to grow or heal injury?

Everything has a limited lifespan. This one apparently works until it doesn't anymore.

It has to take in nutrients somehow.  Otherwise the daughter worms wouldn't grow into adulthood.  Every asexual splitting would just result in smaller and smaller worms.


I don't know. I didn't invent it. Read the article.
 
2019-04-14 02:25:56 PM  

fusillade762: These groovy creatures also reproduce asexually by splitting their bodies and growing new worms from the bits.

It seems the secret to immortality is not having sex.


Hail hydras?
 
2019-04-14 02:27:56 PM  
No mouth, no anus, no problem? That's the weirdest porno ever.
 
2019-04-14 09:27:04 PM  
According to this article, the worms provide the bacteria with hydrogen sulphide from the sediments they live in, although it doesn't say how they absorb it.  So the worms aren't completely closed systems.
 
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