I ran in a race the other day called the "Arctic Frog", and that got me wondering, and sure enough, it's a real critter, the Alaskan Wood Frog:
"The way wood frogs avoid freezing to death is due to so-called cryoprotectants—solutes that lower the freezing temperature of the animal’s tissues. These include glucose (blood sugar) and urea and have been found in much higher concentrations in the Alaskan wood frogs than in their southern counterparts."
When you're expecting a big, big freeze,
Tell the bartender: "Cryoprotectants, please!"