By Gurpreet Singh |December 4, 2025
These squirrels hibernate deeply, lowering body temperature below freezing, almost freezing solid, yet survive without damage to vital organs.
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Wood frogs freeze almost completely during winter, halting heartbeat and breathing, then thaw and hop away when spring arrives.
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Emperor penguins huddle together in Antarctica’s cold, rotating positions to conserve warmth and shield chicks from freezing winds.
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Ladybugs gather in large groups under leaves and rocks, conserving heat collectively to survive cold winter months.
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Arctic hares grow thick white fur and burrow into snow for insulation, blending camouflage with warmth in harsh tundra.
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Bats hibernate in caves, reducing heartbeat and respiration, relying on fat reserves to survive months without eating.
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Krill slow metabolism and sink into deep ocean layers during winter, conserving energy until spring blooms provide plentiful food.
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This bird can enter a state of torpor for weeks, slowing metabolism and conserving energy during food scarcity.
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Moose grow dense winter coats and rely on stored fat while foraging sparsely in deep snow for survival.
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Hedgehogs hibernate underground, lowering metabolism and body temperature while relying on stored fat to survive frigid nights.
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