Can you cryogenically freeze and reanimate a goldfish??

[Superwombat]

I've heard the statement in the past that if you dunk a goldfish in Liquid Nitrogen and then put it in a water tank it will thaw out and still be alive. I can't find anything on the internet to debunk this, but I can't find anything to prove it either. Does anyone know where I could go to get an answer to this nagging question??

 

[compuwiz1]

I've heard that cryogenically freezing anything and bringing it back to life is impossible, due to cell death. I wonder what famous people are frozen at the moment waiting for the cure all to come so they can be reanimated, er reconstituted. Dehydration, now I wonder if that's an option? LOL

 

[Superwombat]

Walt Disney for one... also Hitlers head is frozen for that reason...

 

[AvesPKS]

Of course...you didn't read that one? The goldfish who defeated Hitler in WWII was cryogenically frozen after the war, then reanimated when evil threatened the US onces again...of course, his shield didn't survive...

 

[Fuzzmuncher]

Heh, it worked for Austin Powers didn't it?

 

[Czar]

It works for some kinds of animals, those who have natural "anti-freeze" that stops the cells from dieing, not sure if goldfish have this.

 

[kami]

You can freeze certain types of frogs...for long periods of time even, then thaw them out and they are fine.

 

[stonerdave]

That's odd, I had some friends over a week ago and was asked this same thing. Although he just said putting the goldfish in the freezer would do it. I told him I didn't know, it may be possible for fish to do this.

Any marine biologists out there?

 

[loup garou]

hmmm...I've got 10L of LN2 @ work...and a pet store down the street...BRB!

 

[azazyel]

Of course you can. My friend had a pond that froze every winter and you could see the fish frozen in the ice. But when spring came arround they were fine.

 

[eia430]

What causes cell death in freezing something is the water itself forming a crystaline structure and expanding it's volume therefore rupturing the cell. There are many fishes, frogs, small creatures in general that have a natural antifreze... their body liquids do not crystalize untill a point much lower in temp than regular water. I've heard (although can't point directly to) of certain studies where they are able to "freeze" and reanimate small creatures the largest of which being a small dog. Their solution to the water forming crystals is to use liquid nitrogen to cool the creature fast enough so water does not form crystals... in fact it's not really ice, but a super cooled liquid. Kinda like the difference between glass a super cooled liquid and quarts a crystal (both being made of silica). I'm just going by memory from something I've read a while ago, so don't blame me if you try to freeze "spot" and he never wakes up again. I believe you also have to thaw the subject quickly also to get through that "zone" where crystals are formed, quickly.

 

[Tominator]

A Gold Fish is a member of the Carp Family and if memory serves they can be frozen without harm. At what temperature they do die, I don't know.