In times of extreme cold, many living things rely on built-in cryoprotective mechanisms to help them survive, whether it be a state of suspended animation (torpor) or by preventing their blood from icing up, thus protecting their bodies' tissues, cells, organs and muscles.
Here I am practicing cryoprotection, with all systems on PAUSE near the fire.
There are multiple adaptive nuances in nature (eg, freeze avoiding and freeze tolerant) to survive freezing conditions. Certain living things (animals, plants, fungi and bacteria) are able to produce antifreeze proteins in their blood to protect their organs and tissues from building up ice crystals during freezing conditions. Fish, insects and amphibians have inbuilt protection states such as reduced to no heart beat, and/or little to no respiration (lowered metabolism).
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