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4 Sep 2024 01:13:49 EDT (-0400)
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From: Warp
Subject: The toughest animals in existence?
Date: 16 Jul 2010 10:19:28
Message: <4c406a70@news.povray.org>
I'd say: By far.

http://en.wikipedia.org/wiki/Tardigrade

  "Tardigrades are polyextremophiles and are able to survive in extreme
environments that would kill almost any other animal. Some can survive
temperatures of -273?C (-460?F), close to absolute zero, temperatures
as high as 151?C (303?F), 1000 times more radiation than other animals,
and almost a decade without water. In September 2007, tardigrades were
taken into low Earth orbit on the FOTON-M3 mission and for 10 days were
exposed to the vacuum of space. After they were returned to Earth, it was
discovered that many of them survived and laid eggs that hatched normally,
making these the only animals known to be able to survive the vacuum of
space."

-- 
                                                          - Warp


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From: Invisible
Subject: Re: The toughest animals in existence?
Date: 16 Jul 2010 10:39:58
Message: <4c406f3e@news.povray.org>
Warp wrote:
>   I'd say: By far.
> 
> http://en.wikipedia.org/wiki/Tardigrade

Somehow, saying that that's "hardcore" seems wholely inadaquat.

Still, when you're that tiny, forces like gravity and inertia no longer 
apply to you. (Or rather, they are insignificant compared to viscosity.) 
I would imagine that with a surface area of just 3.1 mm^2 enclosing a 
volume of only 0.5 mm^3, differences in external pressure are pretty 
unimportant to you. Which would mean that differences in temperature 
probably aren't important to your physical structure. (Chemical 
structure is of course another matter...)

http://en.wikipedia.org/wiki/Strain_121


*survive*, but *live*. It seems Tardigrades go into stasis at high 
temperatures.)

Yeah, small is rugged. Still, there _is_ that frog that survives being 
frozen solid each year...


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From: Warp
Subject: Re: The toughest animals in existence?
Date: 16 Jul 2010 11:05:21
Message: <4c407530@news.povray.org>
Invisible <voi### [at] devnull> wrote:
> Warp wrote:
> >   I'd say: By far.
> > 
> > http://en.wikipedia.org/wiki/Tardigrade

> Somehow, saying that that's "hardcore" seems wholely inadaquat.

> Still, when you're that tiny, forces like gravity and inertia no longer 
> apply to you.

  But things like dehydration and radiation (UV or ionizing) do. Also,
I think vacuum and thousands of times normal atmospheric pressure do also
have a significant effect regardless of your size.

  It's a popular thought experiment which animals would survive a nuclear
holocaust. It would probably be safe to say that tardigrades wouldn't even
*notice* such a thing and just mind their business as usual.

-- 
                                                          - Warp


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From: Invisible
Subject: Re: The toughest animals in existence?
Date: 16 Jul 2010 11:19:52
Message: <4c407898$1@news.povray.org>
>> Still, when you're that tiny, forces like gravity and inertia no longer 
>> apply to you.
> 
>   But things like dehydration and radiation (UV or ionizing) do.

Indeed.

> Also,
> I think vacuum and thousands of times normal atmospheric pressure do also
> have a significant effect regardless of your size.

It's been my observation that small objects tend to be inherantly 
stronger. But who knows, perhaps you're right.

>   It's a popular thought experiment which animals would survive a nuclear
> holocaust. It would probably be safe to say that tardigrades wouldn't even
> *notice* such a thing and just mind their business as usual.

Given that some of them evidently live deeply burried in the sediments 
at the very bottom of the deepest parts of the ocean... yeah, they're 
really *not* going to care.


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From: Darren New
Subject: Re: The toughest animals in existence?
Date: 16 Jul 2010 12:56:51
Message: <4c408f53$1@news.povray.org>
Warp wrote:
>   I'd say: By far.
> 
> http://en.wikipedia.org/wiki/Tardigrade
> 
>   "Tardigrades are polyextremophiles 

I'm not sure "extremophile" would be the word I would pick. Capable of 
dealing with extremes? Sure. *Loving* it?  Doubtful. ;-)


Cool link, tho.


-- 
Darren New, San Diego CA, USA (PST)
    C# - a language whose greatest drawback
    is that its best implementation comes
    from a company that doesn't hate Microsoft.


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From: nemesis
Subject: Re: The toughest animals in existence?
Date: 16 Jul 2010 13:01:10
Message: <4c409056$1@news.povray.org>
Invisible escreveu:
> It's been my observation that small objects tend to be inherantly 
> stronger.

you only need a bite from a mutated spider to become that strong 
yourself too... :)

>>   It's a popular thought experiment which animals would survive a nuclear
>> holocaust. It would probably be safe to say that tardigrades wouldn't 
>> even
>> *notice* such a thing and just mind their business as usual.

They will notice if their food begins to scarce.  What's the point of 
being so strong if your food isn't?

-- 
a game sig: http://tinyurl.com/d3rxz9


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From: Orchid XP v8
Subject: Re: The toughest animals in existence?
Date: 16 Jul 2010 14:01:44
Message: <4c409e88$1@news.povray.org>
>> It's been my observation that small objects tend to be inherantly 
>> stronger.
> 
> you only need a bite from a mutated spider to become that strong 
> yourself too... :)

Well, we do handle C14 at work, so...

> They will notice if their food begins to scarce.  What's the point of 
> being so strong if your food isn't?

Will they? Or just sleep it off? ;-)

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*


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From: Warp
Subject: Re: The toughest animals in existence?
Date: 16 Jul 2010 14:08:07
Message: <4c40a006@news.povray.org>
Darren New <dne### [at] sanrrcom> wrote:
> Cool link, tho.

  They are also surprisingly cute, considering their size:
http://video.google.com/videoplay?docid=8621981677427185677#

-- 
                                                          - Warp


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