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Biological Miracle – Wood Frog

(www.nps.gov)
501 points thunderbong | 5 comments | 15 Nov 24 18:16 UTC | HN request time: 1.049s | source
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pkoird ◴[15 Nov 24 19:25 UTC] No.42150000[source]▶
Curious to how long the frozen structure can "survive". I wonder if it's a good idea to freeze one such frog and thaw it centuries later (an amphibian time-traveler!)
replies(2): >>42150310 #>>42154513 #
olejorgenb ◴[15 Nov 24 19:59 UTC] No.42150310[source]▶
- Artificial experiment [1]: no longer than 3 months (but see disclaimer)

- New study [2]: 7 months (with 100% survival rate)

So further study seems to be needed.

[1] https://journals.biologists.com/jeb/article/216/18/3461/1160...

[2] https://journals.biologists.com/jeb/article/217/12/2193/1211...

replies(1): >>42151329 #
1. crazygringo ◴[15 Nov 24 21:29 UTC] No.42151329[source]▶
If kept in pristine conditions (perfectly sealed to prevent evaporation leading to dehydration, deep freeze), is there a particular chemical needed for life that we might expect to break down first?

Since chemical reactions happen in the freezer just slower...

replies(1): >>42156809 #
2. Qem ◴[16 Nov 24 15:09 UTC] No.42156809[source]▶
> Since chemical reactions happen in the freezer just slower.

Can't the gross just be kept at artificially lie temperatures to lengthen the stasis time? Say, -100C or even lower?

replies(2): >>42157715 #>>42157903 #
3. Qem ◴[16 Nov 24 17:46 UTC] No.42157715[source]▶
*the frog
replies(1): >>42157900 #
4. ◴[16 Nov 24 18:09 UTC] No.42157900{3}[source]▶
5. maronato ◴[16 Nov 24 18:10 UTC] No.42157903[source]▶
The article says their cells don’t freeze during hibernation. -100C would probably freeze the cells and kill them