Two very cold days with temperatures in the low 20s are coming to an end. Tomorrow the temperatures will rise to decent numbers. I know this, but they don't. For all they know, they could be in for another horrifying two weeks like the ones they just went through. Can they even remember that? Or can they project into the future? I don't know, maybe they only live day-to-day, but I think they must have some kind of memory. At any rate, they are in for a nice surprise tomorrow when things warm up.
I've been amazed at their capacity to sustain cold temperatures, They must have some "magic potion". It turns out that their cousins the ground squirrels, and some other rodents that hibernate, do have some "magical" ability to adjust their body temperatures to the cold. It's a specialized protein called TRPM8 that helps them resist the cold. Now I know our tree squirrels don't have that, but they must have something similar going on that helps them get through this crazy cold weather. As for me, I do my part by supplying the food. Food = energy = heat.