The Freezing Tolerance Mechanism of the Wood Frog
11:08
The Freezing Tolerance Mechanism of the Wood Frog
381 viewsApr 8, 2025
YouTubeThe Animal Stories
The wood frog survives winters that would kill almost any other vertebrate. As temperatures drop, up to two-thirds of its body water freezes solid. Its heart stops. Its lungs stop. Blood stops moving. By every medical definition, it’s dead. But the frog floods its cells with glucose — a natural antifreeze — protecting its tissues from ice damage. When spring warmth returns, the ice melts, the heart restarts, and the frog simply stands up and hops away, as if nothing happened. It’s one of the mos
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The wood frog survives winters that would kill almost any other vertebrate. As temperatures drop, up to two-thirds of its body water freezes solid. Its heart stops. Its lungs stop. Blood stops moving. By every medical definition, it’s dead. But the frog floods its cells with glucose — a natural antifreeze — protecting its tissues from ice damage. When spring warmth returns, the ice melts, the heart restarts, and the frog simply stands up and hops away, as if nothing happened. It’s one of the mos
27 views2 months ago
FacebookOrganic Earth
The Alaska wood frog (Rana sylvatica) has an extraordinary ability to survive the winter: it can freeze a large part of its body and then fully thaw in spring. Falling temperatures trigger a massive production of glucose, which acts as a natural antifreeze and reduces the formation of harmful ice crystals inside cells. During the freezing period, up to about 65 % of its body water can solidify. At this time, breathing, heartbeat, blood circulation and brain activity cease, and metabolism comes n
0:21
The Alaska wood frog (Rana sylvatica) has an extraordinary ability to survive the winter: it can freeze a large part of its body and then fully thaw in spring. Falling temperatures trigger a massive production of glucose, which acts as a natural antifreeze and reduces the formation of harmful ice crystals inside cells. During the freezing period, up to about 65 % of its body water can solidify. At this time, breathing, heartbeat, blood circulation and brain activity cease, and metabolism comes n
1.2K views3 months ago
FacebookOur Blue Planet
The Frog That Freezes to Survive ❄️🐸 Deep in Alaska’s icy wilderness lives a tiny creature with an extraordinary survival skill — the wood frog. When winter arrives and temperatures plunge, this frog does something almost unbelievable: it freezes solid. Its heart stops beating, its lungs stop breathing, and even its blood turns to ice. To the outside world, it appears lifeless. But when spring sunlight returns and the snow begins to melt, the miracle happens. The frog thaws out, its heart start
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The Frog That Freezes to Survive ❄️🐸 Deep in Alaska’s icy wilderness lives a tiny creature with an extraordinary survival skill — the wood frog. When winter arrives and temperatures plunge, this frog does something almost unbelievable: it freezes solid. Its heart stops beating, its lungs stop breathing, and even its blood turns to ice. To the outside world, it appears lifeless. But when spring sunlight returns and the snow begins to melt, the miracle happens. The frog thaws out, its heart start
332.1K views6 months ago
FacebookUnbelievable World
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