Early humans may have survived the harsh winters by hibernating
I remember reading something like russian poor farmers that didn't have enough food for the winter to do this, it was called Lotska, which reported in  scientific papers over 100 years ago - http://inhumanexperiment.blogspot.com/2010/03/curious-case-o..."At the first fall of snow the whole family gathers round the stove, lies down, ceases to wrestle with the problems of human existence, and quietly goes to sleep. Once a day every one wakes up to eat a piece of hard bread, of which an amount sufficient to last six months has providently been baked in the previous autumn. When the bread has been washed down with a draught of water, everyone goes to sleep again. The members of the family take it in turn to watch and keep the fire alight."But I don't find many reliable source about it. Does anyone if this is really true? It sounds hard to believe.