uniface wrote:RS wrote:Siberia is obviously not like the Arizona desert. It is extremely cold. Like minus 50ºC in the daytime, and minus 70ºC at night. And back then it was glacial max!
Yet the mammoths that thaw out there were flash-frozen : very suddenly. And still have buttercups and such in their stomachs.
Something's askew here.
Besides lots of snow, one of the defining traits of Siberia, and certainly during the height of an ice age is the permafrost. Meaning that the ground is frozen solid. It is one humongous subterranean plate of solid ice. In spring/summer only the top 10 to 15 inches thaw in the sun (and becomes the biggest swamp/peatbog on the planet; and the birthplace of 63 trillion mosquitoes). That's where buttercups grow. That's where mammoths feed. Then, when one falls into a hole in the ground, a crevace or something, that it cannot get out of, it is completely surrounded by permafrost. On all sides. Thus effectively in a deep freezer. So it dies and freezes solid inside 24 hours. There's your flash-frozen mammoth.
It could still happen today. If we still had mammoths. That situation may be 'rectified' in this century when they release cloned mammoths in the tundra again...
That and very nasty weather changes.
Whence the Denisovans chucked it in and migrated to tropical climes.
I don't blame them.
Look at the prospects!
It is apparently not at all impossible that we find a deep frozen Denisovan...!
In fact almost likely. We found, or stumbled upon Oetzi, didn't we? So there must be some Denisovan icicles somewhere too!
Only to find them.
Just a matter of time.