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Worms frozen in permafrost for up to 42,000 years come back to life

siberiantimes.com

141–150 of 159 posts

Re: Worms frozen in permafrost for up to 42,000 years come back to life

#144
post #131

Earlier quoted context omitted.

Could you elaborate? How is this finding related?

Paleolithic Era pun maybe? No idea hahah

I assume it's because now there's literally something for you to eat from the paleolithic?

Re: Worms frozen in permafrost for up to 42,000 years come back to life

#145
post #141

What a shitty reporting: no reporter name, no scientist(s) name. Coming from the country where secret services are known to fake urine samples from sportsmen... I wouldn't take it at the face value...

What, you don't think anyone would be named "The Siberian Times reporter"?

Re: Worms frozen in permafrost for up to 42,000 years come back to life

#146
What i find most interesting must be how this sort of creature came to be. It's "evolutionary strategy" must be to simply get frozen, only to get defrozen every thousand years or so, eat and procreate, then when the cold comes get frozen once more for even more years.

So, I just assume that this creature must've survived several hundreds of thousands of years by being frozen and only procreating when the earth becomes warm enough

Re: Worms frozen in permafrost for up to 42,000 years come back to life

#147

What i find most interesting must be how this sort of creature came to be. It's "evolutionary strategy" must be to simply get frozen, only to get defrozen every thousand years or so, eat and procreate, then when the cold comes get frozen once more for even more years. So, I just assume that this creature must've survived several hundreds of thousands of years by being frozen and only procreating when the earth become…

Life.. uh.. finds a way

Re: Worms frozen in permafrost for up to 42,000 years come back to life

#148

Also, reminds old x-files episode https://en.wikipedia.org/wiki/Ice_(The_X-Files) Hope mass rage has not started yet in Siberia.

Me too, which reminds me, I really need to re-watch all of them one of these days.

hurry up; don't wait until these worms crawl after you! :-)

Re: Worms frozen in permafrost for up to 42,000 years come back to life

#149
post #26

For anyone wondering about previous precedents for reviving frozen multicellular creatures, here's my response to a now-deleted comment: There are shorter-term examples of frogs [0] (up to a few years) and tardigrades [1] (30 years) but I haven't heard of anything on this timescale before. [0] http://www.latimes.com/science/sciencenow/la-sci-sn-alaskan-... [1] https://www.theverge.com/2016/1/18/10785002/water-bear-ta…

Tardigrades are hardcore. From Wikipedia: Tardigrades are considered to be able to survive even complete global mass extinction events due to astrophysical events, such as gamma-ray bursts, or large meteorite impacts. Some of them can withstand extremely cold temperatures down to 1 K (−458 °F; −272 °C) (close to absolute zero), while others can withstand extremely hot temperatures up to 420 K (300 °F; 150 °C) for sev…

Is there any speculation in the scientific community as to why they developed these adaptations?

Re: Worms frozen in permafrost for up to 42,000 years come back to life

#150
post #120
post #20

> Some 300 prehistoric worms were analysed - and two ‘were shown to contain viable nematodes’. This sounds like 300 non-nematode worms were examined, and two of them contained viable nematodes as parasites. Is that correct? Because everything else in the article sounds like the nematodes are the worms, rather than were in the worms. It's a tiny detail, but it's bugging me.

What is worrying me is that nematodes are supposed to be killed by shock frosting fish for 24h. I thought shock frosting meant -18°C.

Anisakis is a totally different animal, adapted to live in a stable and warm place inside a bigger animal.
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