Their natural enemies are the fox, wildcats, coyotes and hawks. Another natural enemy of the groundhog is man. Man has built homes and roads in many of the areas the groundhog has called home, reducing the size of the natural environment for Dunkirk Dave and others like him. In the wild, groundhogs like to eat leaves, clover, the soft stem parts of wildflowers like the buttercup, daisies, dandelions and thistles. He also likes to eat the bark of young trees that is scratched or nibbled loose.
Groundhogs can create a fair bit trouble by helping themselves to crops that farmers grow.
Hibernation is a very deep, sleeplike condition where breathing and the heartbeat slows down so much, you can barely tell the animal is alive. Many different types of animals hibernate for the winter, because that is the time when food is most scarce and the temperature is very cold. Groundhogs don't seem to mind spending most of their lives alone.