Why did they called it groundhog?

Everybody celebrates Groundhog Day!

Because:

• It's the biggest holiday between Burns Night and Valentines Day
• It preserves our ethnic traditions
• Its lets you cook up and eat traditional savory groundhog pie
• Hallmark invests millions in Groundhog Day cards and everyone expects to get one
• The kids like getting the new Groundhog dolls and puppets
• Videos of the best parties get put on the evening news
• All your Groundhog believing friends will suspect that you'e an A-Groundhog-ist if you don't