Why Don't Penguins' Feet Freeze?

The video explores how penguins survive extreme cold, focusing on their unique adaptations. Penguins maintain their body warmth with fat and feathers, while their feet are adapted to withstand cold through countercurrent heat exchange. This mechanism allows them to conserve energy by keeping their feet just above freezing. The video also compares this adaptation to human physiology, highlighting differences in cold resistance.

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