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About Groundhog

The groundhog, or woodchuck, is one of 14 species of marmots. These rodents live a feast-or-famine lifestyle and gorge themselves all summer to build up plentiful reserves of fat. After the first frost, they retreat to their underground burrows and snooze until spring, drawing their sustenance from body fat. While hibernating, the animal's heart rate plunges, and its body temperature is not much warmer than the temperature inside its burrow.

Fast Facts 

Common Name: Groundhog

Scientific Name: Marmota monax

Type: Mammals

Diet: Herbivores

Size: Head and body, 17.75 to 24 in; tail, 7 to 9.75 in

Weight: 13 lbs

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