Photosynthetic Animals - Tree of Souls - An Avatar Community Forum
Tree of Souls - An Avatar Community Forum
Go Back   Tree of Souls - An Avatar Community Forum » General Forums » Science and Technology

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-20-2011, 05:19 AM
Tsamsiyu
Theorist wants to go to all the go inbetweens
 
Join Date: Feb 2011
Posts: 511
Default Photosynthetic Animals

I can't remember if I put this on AF or ToS, but I first saw it almost 2 years ago.

Green Sea Slug Is Part Animal, Part Plant | Wired Science | Wired.com



Anyways, if I could photosynthesize, I'd be gone. No need for society to give me food, I'd be up an outta here like that.

Interesting article though. Photosynthesis in animals is fairly new
__________________
"Pardon me, I wanna live in a fantasy"

"I wish I was a sacrifice but somehow still lived on"

It seems like everybody is moving forward. As if there is some final goal they can achieve and get to. I don't get it though. When I look around, it seems like I'm already there, and there is nothing left to do.

"You think you're so clever and classless and free, but you're still ****ing peasants as far as I can see."

I wish I could take just one hour of what I experience out in nature, wrap it in a box, put a bow on it, and start handing out to people

Nature has its own religion; gospel from the land

I know I was born and I know that I'll die; The in between is mine."
Reply With Quote
  #2  
Old 11-20-2011, 06:59 AM
Raiden's Avatar
Outlier
Raiden BIOSYNTHETIC LIFEFORM #R41-D3N
 
Join Date: Apr 2010
Posts: 1,072
Default

Heh

It is not new, by any means.

Corals, in phylum Cnidaria, produce food two ways; the polyps use their nematocysts to capture small animals floating in currents, and then they have symbiotic algae that cohabit within the polyp's body; they photosynthesize sugars for the coral in addition to the animal and plant proteins captured by the polyps. Considering phylum Cnidaria is the oldest phylum next to Porifera, and nudibranchs are molluscs, which came about later, the use of symbiotic plantforms to synthesize extra food is anything but new.

Furthermore, the larvae of many amphibians, and sometimes even the adults, do the same thing but for a different reason. They have algal cells cohabiting within their own tissues that carry out photosynthesis, but the amphibian does not utilize the sugar; it actually uses the algae as an internal oxygen factory to supply extra oxygen to its cells. Considering there are many amphibians that lack lungs and breathe through their skin, having an internal source of oxygen is a very useful trick.
__________________
Modern technology owes ecology an apology.

Trouble keeps me running faster

Save the planet from disaster...
Reply With Quote
  #3  
Old 11-20-2011, 12:25 PM
Tsamsiyu
Theorist wants to go to all the go inbetweens
 
Join Date: Feb 2011
Posts: 511
Default

I think it's the first time though that an animal has been able to survive completely off of photosynthesis for long term periods, such as a year
__________________
"Pardon me, I wanna live in a fantasy"

"I wish I was a sacrifice but somehow still lived on"

It seems like everybody is moving forward. As if there is some final goal they can achieve and get to. I don't get it though. When I look around, it seems like I'm already there, and there is nothing left to do.

"You think you're so clever and classless and free, but you're still ****ing peasants as far as I can see."

I wish I could take just one hour of what I experience out in nature, wrap it in a box, put a bow on it, and start handing out to people

Nature has its own religion; gospel from the land

I know I was born and I know that I'll die; The in between is mine."
Reply With Quote
  #4  
Old 11-21-2011, 09:01 AM
Raiden's Avatar
Outlier
Raiden BIOSYNTHETIC LIFEFORM #R41-D3N
 
Join Date: Apr 2010
Posts: 1,072
Default

Quote:
Originally Posted by Theorist View Post
I think it's the first time though that an animal has been able to survive completely off of photosynthesis for long term periods, such as a year
Nope.

Corals can go for very long periods without much food, but die quickly without enough light.
__________________
Modern technology owes ecology an apology.

Trouble keeps me running faster

Save the planet from disaster...
Reply With Quote
  #5  
Old 11-21-2011, 02:53 PM
Tsamsiyu
Theorist wants to go to all the go inbetweens
 
Join Date: Feb 2011
Posts: 511
Default

Sorry, should have said except corals, it says that in the article that this is the 1st time except corals, which are mostly immobile compared to the slug
__________________
"Pardon me, I wanna live in a fantasy"

"I wish I was a sacrifice but somehow still lived on"

It seems like everybody is moving forward. As if there is some final goal they can achieve and get to. I don't get it though. When I look around, it seems like I'm already there, and there is nothing left to do.

"You think you're so clever and classless and free, but you're still ****ing peasants as far as I can see."

I wish I could take just one hour of what I experience out in nature, wrap it in a box, put a bow on it, and start handing out to people

Nature has its own religion; gospel from the land

I know I was born and I know that I'll die; The in between is mine."
Reply With Quote
  #6  
Old 11-26-2011, 03:12 AM
auroraglacialis's Avatar
Tsulfätu
auroraglacialis can now be called "doctor"
 
Join Date: Apr 2010
Location: Central Europe
Posts: 1,622
Default

Quote:
Pierce emphasized that this green slug goes far beyond animals such as corals that host live-in microbes that share the bounties of their photosynthesis. Most of those hosts tuck in the partner cells whole in crevices or pockets among host cells. Pierce’s slug, however, takes just parts of cells, the little green photosynthetic organelles called chloroplasts, from the algae it eats. The slug’s highly branched gut network engulfs these stolen bits and holds them inside slug cells
It also says that the slugs can actually make chlorophyll themselves. That really is special. Though they seem to also eat algae a lot, so it is not that they really only live on photosynthesis...
__________________
Know your idols: Who said "Hitler killed five million Jews. It is the greatest crime of our time. But the Jews should have offered themselves to the butcher's knife. They should have thrown themselves into the sea from cliffs.". (Solution: "Mahatma" Ghandi)

Stop terraforming Earth (wordpress)

"Humans are storytellers. These stories then can become our reality. Only when we loose ourselves in the stories they have the power to control us. Our culture got lost in the wrong story, a story of death and defeat, of opression and control, of separation and competition. We need a new story!"
Reply With Quote
  #7  
Old 11-27-2011, 01:40 AM
Tsamsiyu
Theorist wants to go to all the go inbetweens
 
Join Date: Feb 2011
Posts: 511
Default

Quote:
Originally Posted by auroraglacialis View Post
It also says that the slugs can actually make chlorophyll themselves. That really is special. Though they seem to also eat algae a lot, so it is not that they really only live on photosynthesis...
I think they can survive up to a year without eating any extra algae though, and just having light from your average big building walmart type ceiling light.
__________________
"Pardon me, I wanna live in a fantasy"

"I wish I was a sacrifice but somehow still lived on"

It seems like everybody is moving forward. As if there is some final goal they can achieve and get to. I don't get it though. When I look around, it seems like I'm already there, and there is nothing left to do.

"You think you're so clever and classless and free, but you're still ****ing peasants as far as I can see."

I wish I could take just one hour of what I experience out in nature, wrap it in a box, put a bow on it, and start handing out to people

Nature has its own religion; gospel from the land

I know I was born and I know that I'll die; The in between is mine."
Reply With Quote
  #8  
Old 11-27-2011, 03:46 AM
Moco Loco's Avatar
Dandy Lion
Moco Loco is a lion in a low place
 
Join Date: Jun 2011
Location: New Orleans
Posts: 2,915
Send a message via Skype™ to Moco Loco
Default

I imagine living by photosynthesis alone for any extended amount of time would wear the slug out, even if it could survive up to a year.
__________________

Reply With Quote
  #9  
Old 11-27-2011, 06:36 AM
Tsamsiyu
Theorist wants to go to all the go inbetweens
 
Join Date: Feb 2011
Posts: 511
Default

yeah, I think when it says the slug can live for a year without algae, it probably means they left there in the water till it died
__________________
"Pardon me, I wanna live in a fantasy"

"I wish I was a sacrifice but somehow still lived on"

It seems like everybody is moving forward. As if there is some final goal they can achieve and get to. I don't get it though. When I look around, it seems like I'm already there, and there is nothing left to do.

"You think you're so clever and classless and free, but you're still ****ing peasants as far as I can see."

I wish I could take just one hour of what I experience out in nature, wrap it in a box, put a bow on it, and start handing out to people

Nature has its own religion; gospel from the land

I know I was born and I know that I'll die; The in between is mine."
Reply With Quote
  #10  
Old 11-27-2011, 09:23 AM
Raiden's Avatar
Outlier
Raiden BIOSYNTHETIC LIFEFORM #R41-D3N
 
Join Date: Apr 2010
Posts: 1,072
Default

Quote:
Originally Posted by Theorist View Post
yeah, I think when it says the slug can live for a year without algae, it probably means they left there in the water till it died
That's not true....

Somehow I doubt that someone would let a study drag out for a year just to starve a nudibranch to death. It's possible to count the number of glucose molecules made by photosynthesis, and since each glucose molecule accounts for ~50 ATP molecules, and each cell needs to make a certain amount of ATP for the animal to survive, you just need to whip out a calculator and multiply it out to find out how many days it can go without consuming food.
__________________
Modern technology owes ecology an apology.

Trouble keeps me running faster

Save the planet from disaster...
Reply With Quote
  #11  
Old 11-28-2011, 12:19 PM
auroraglacialis's Avatar
Tsulfätu
auroraglacialis can now be called "doctor"
 
Join Date: Apr 2010
Location: Central Europe
Posts: 1,622
Default

I did find it nowhere that it says the slug can survive for a year without food. I think that was a misreading of someone. In the experiments (if I found the correct paper) they starved them foe 12 weeks though, which they seem to survive.
PLoS ONE: Foraging Behavior under Starvation Conditions Is Altered via Photosynthesis by the Marine Gastropod, Elysia*clarki
__________________
Know your idols: Who said "Hitler killed five million Jews. It is the greatest crime of our time. But the Jews should have offered themselves to the butcher's knife. They should have thrown themselves into the sea from cliffs.". (Solution: "Mahatma" Ghandi)

Stop terraforming Earth (wordpress)

"Humans are storytellers. These stories then can become our reality. Only when we loose ourselves in the stories they have the power to control us. Our culture got lost in the wrong story, a story of death and defeat, of opression and control, of separation and competition. We need a new story!"
Reply With Quote
  #12  
Old 11-29-2011, 11:38 PM
Tsamsiyu
Theorist wants to go to all the go inbetweens
 
Join Date: Feb 2011
Posts: 511
Default

here's one citing that they can live a year (their entire lifespan without eating, after they eat some algae)

Solar-powered sea slug harnesses stolen plant genes - life - 24 November 2008 - New Scientist

"Young E. chlorotica fed with algae for two weeks, could survive for the rest of their year-long lives without eating, Rumpho found in earlier work."

And, I think they let them live for a year, considering that this person studied them for 20 years

"After 20 years of studying the sea slug Elysia chlorotica, biologist Sidney Pierce recently discovered a trait unprecedented in the animal kingdom - sea creatures were producing chlorophyll."

Photosynthetic Sea Slug Snarfs (And Steals) Algae DNA
__________________
"Pardon me, I wanna live in a fantasy"

"I wish I was a sacrifice but somehow still lived on"

It seems like everybody is moving forward. As if there is some final goal they can achieve and get to. I don't get it though. When I look around, it seems like I'm already there, and there is nothing left to do.

"You think you're so clever and classless and free, but you're still ****ing peasants as far as I can see."

I wish I could take just one hour of what I experience out in nature, wrap it in a box, put a bow on it, and start handing out to people

Nature has its own religion; gospel from the land

I know I was born and I know that I'll die; The in between is mine."
Reply With Quote
  #13  
Old 11-30-2011, 01:02 AM
Raiden's Avatar
Outlier
Raiden BIOSYNTHETIC LIFEFORM #R41-D3N
 
Join Date: Apr 2010
Posts: 1,072
Default

Well, if it no longer needs any food because it photosynthesizes most of it, then it doesn't really matter.

When humane behavior goes out of control, people become humaniacs and no longer think with reason, just feeling.
__________________
Modern technology owes ecology an apology.

Trouble keeps me running faster

Save the planet from disaster...
Reply With Quote
  #14  
Old 11-30-2011, 05:31 AM
Tsamsiyu
Aquaplant has no status.
 
Join Date: Mar 2010
Posts: 691
Default

Quote:
Originally Posted by Raiden View Post
When humane behavior goes out of control, people become humaniacs and no longer think with reason, just feeling.
Is it even possible to be too humane? Isn't that a contradiction in itself?

I mean that if humane behaviour becomes detrimental to life, then can it even be considered humane anymore?
Reply With Quote
  #15  
Old 11-30-2011, 04:41 PM
Tsamsiyu
Theorist wants to go to all the go inbetweens
 
Join Date: Feb 2011
Posts: 511
Default

Quote:
Originally Posted by Raiden View Post
Well, if it no longer needs any food because it photosynthesizes most of it, then it doesn't really matter.

When humane behavior goes out of control, people become humaniacs and no longer think with reason, just feeling.
oh, I'm just saying, it would have been kinda sad watching the slugs knowing "oh, we just have to wait till they die now"

I don't think it's inhumane, I mean it essentially lived out it's whole life. I'm just saying if I were that scientist I'd be a little sad knowing I was going to watch this thing till it died, but that's just me.
__________________
"Pardon me, I wanna live in a fantasy"

"I wish I was a sacrifice but somehow still lived on"

It seems like everybody is moving forward. As if there is some final goal they can achieve and get to. I don't get it though. When I look around, it seems like I'm already there, and there is nothing left to do.

"You think you're so clever and classless and free, but you're still ****ing peasants as far as I can see."

I wish I could take just one hour of what I experience out in nature, wrap it in a box, put a bow on it, and start handing out to people

Nature has its own religion; gospel from the land

I know I was born and I know that I'll die; The in between is mine."
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Visit our partner sites:

      pandoraworld.ru



All times are GMT +1. The time now is 07:14 AM.

Based on the Planet Earth theme by Themes by Design


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
All images and clips of Avatar are the exclusive property of 20th Century Fox.