Wednesday, March 9, 2005

Groundhog Hibernation



Groundhog hibernation is a truely amazing thing.

During the summer a woodchuck's heart rate is around 80 beats a minute, and it has a temperature of 98 degrees Fahrenheit.

In the winter, however, a groundhog's heartbeat drops to only 5 beats a minute, and its body temperature drops to just 38 degrees.

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