7. A frog that goes into total freeze
The Alaskan Wood Frog spends six to seven months of the year in complete freezing. The frog’s heart and lungs stop beating, and its blood stops flowing when the frost arrives and coats its body in ice. The frog possesses a process known as cryoprotection, which lowers the freezing point of its blood and other bodily fluids to aid in its survival in extremely cold temperatures. When spring arrives, the frog awakens once more and carries on with its growth.
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