>Animal is adapted to the cold>Actually, it uses its thick fur to keep its living cells 35+ degreesAre there any actively mobile living beings with a core temperature (however you would even define that) below the freezing temperature of water? Or at least some of its cells?
In northernly temperate climates that can support amphibians during spring/summer, like Alaska and Japan, certain frogs survive being frozen in winter while they hibernate. According to what I remember from what I glossed before; they let all liquid in their body but the cells freeze by producing a sort of antifreeze.
