6 Weird Groundhog Facts for Groundhog Day

Groundhogs are best known for their Groundhog Day weather predictions, but their forecasts are no more accurate than chance. The tradition of watching a groundhog emerge on February 2 has roots in older seasonal folklore and continues to draw large crowds each year. In reality, groundhogs come out of hibernation at this time primarily to begin mating activities, not to predict the arrival of spring.

Beyond the ceremony, groundhogs have several unusual traits. Their teeth grow continuously, requiring constant gnawing to keep them from becoming too long. They are also skilled diggers, creating complex underground burrow systems with multiple chambers and long tunnel networks. While excavating, groundhogs have occasionally uncovered important archaeological sites. In addition, they play a role in medical research, as their biology helps scientists study liver disease. Groundhogs are widespread across North America and are known by many names, including woodchuck and whistle-pig, reflecting their distinctive sounds and stocky appearance.