When winter’s cold comes knocking, wild animals have ways to survive. The wood frog has a most unusual way of handling the cold. It freezes, right along with its surroundings!
Many frogs spend the winter in deep burrows, where they are protected from the frost. As temperatures drop, they enter hibernation. When spring comes, the frogs “wake up,” ready to be active again.
The wood frog goes one step further. It can live farther north than any other frog, even north of the Arctic Circle. Its winter hiding place can get very cold. That’s when its unusual talent comes in handy. When the temperature dips below 32°F, the wood frog releases a special protein in its bloodstream. This causes the water in its blood to freeze. Its liver releases glucose,…
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Fun For Kidz (Digital) - 1 Issue, Cold Blooded Creatures