Though not totally accurate, this link mentions some details about the Beresovka Mammoth:
Excerpt:
"One theory to explain this was that somehow there had been a sudden, deadly
drop in temperature. If the temperature dropped fast enough and low enough, it could freeze the carcass and stop the digestive process, leaving the food intact.
There are problems with this theory, however. First, it takes time to freeze an animal that big. A side of beef takes thirty minutes to freeze at a temperature of -40° F. The mammoth was massive, still warm, had its internal organs, and was covered with a woolly hide that would have insulated it. It is estimated that in order to freeze in a half hour, the temperature would have had to be below -150° F. If it took much longer than half an hour, the stomach contents would have been digested.
Adding to the complications, the temperature would have had to drop quite suddenly. Since the mammoth was eating buttercups when it died, we know that it had to be in the late summer or early autumn. It may have been cold then, but it was still mild enough for there to be buttercups. Suddenly – within a matter of hours at most – the temperature would have had to plummet fifty or more degrees, possibly more than 100 degrees. We don’t know of any mechanism that could cause that"
The most important accurate part of this link is how long it would have taken to freeze that mammoth so that its flesh was still edible. While the link only mentions buttercups, there were actually many plant species found in that mammoth's stomach and mouth indicating the climate at its death - which has never been the climate there since then - though the current global warming may change that.
Extremely important is that the evidence is consistent with a lowering of the temperature to below -150 degrees F for 30 minutes. The authors doubt this because they were not aware of a mechanism that would cause that.
The article does not mention results of an autopsy which revealed the cause of death was drowning. Normally water is not liquid at -150 degrees F. But most who are aware of the actual evidence fail to note supercooled water - and also are not aware of how such supercooled water could have been rotating around the earth. Now, this is just a personal theory of mine - but supercooled water is not theory - it is fact. I will explain further in my next post: