Archives for posts with tag: ANIMALS
Wood Frog (Rana sylvatica) can survive for weeks with two-thirds of their body water completely frozen. They stop breathing and their hearts stop beating entirely for days to weeks at a time. During its period of frozen winter hibernation, the frogs’ physical processes—from metabolic activity to waste production—grind to a near halt. The frogs are likely to endure multiple freeze/thaw episodes over the course of a winter.
To test the freeze tolerance of Alaskan populations of Rana sylvatica specifically, the frog was frozen at temperatures as low as -16 degrees Celsius before being thawed out and returning to its normal healthy state.
a few …