Groundhog Day

Today is groundhog day, some interesting facts from an MSN article.

• While the official groundhog in Pennsylvannia is a zoo animal put in place for tourism, groundhog day is built around the idea of a groundhog hibernating.
• The day started in Europe as part of a Christian holiday called Candlemas, however, they used a hedgehog
• When the groundhog hibernates, it only breathes once every four minutes, its heart beats about four times a minute, its body temperature drops to 36 degrees.
• Usually a groundhog's hibernation cycle lasts about 2 weeks, then he checks again for spring. Additionally, the groundhog only gets the correct prediction 37% of the time.