Why polar bears differ from brown bears in winter survival strategies

PravdaReport ·
Russia

Hibernation in bears is far from a simple prolonged sleep; it is a complex evolutionary adaptation that allows these large predators to survive months of food scarcity. The process begins long before the first frosts, with the timing of their retreat to the den depending on a combination of environmental conditions and the animal's own physical state. The decision to enter hibernation is not…

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