In the frozen wilderness of Alaska, wood frogs survive winter using one of the most extraordinary biological tricks in the animal kingdom: they freeze solid. Their hearts stop beating, their blood turns to ice, and their bodies enter a suspended state until spring returns—when they thaw out and come back to life. Important Details: • Up to 70% of the frog’s body water freezes during winter hibernation • Their liver produces large amounts of glucose, which acts like antifreeze to protect cells •
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In the frozen wilderness of Alaska, wood frogs survive winter using o…
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This sped-up video illustrates the freezing and thawing process for hibernating wood frogs. When winter brings fall to a close, these frogs hunker down in dead leaves and moss that cover the ground, which serve as their shelter for the months ahead. As the cold sets in, frost creeps across the plant matter and reaches the immobile frogs, who then begin the process of releasing a cryoprotectant that keeps their bodies from drying out as they freeze. Making sure ice doesn’t form in their cells is
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This sped-up video illustrates the freezing and thawing process for …
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