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On Groundhog Day, a bunch of men, wearing suits and top hats, pull a groundhog out of a hole in Punxsutawney, Pennsylvania. They then read a scroll the groundhog supposedly wrote, that states whether or not it saw its shadow. This determines if winter will last another six weeks, or if spring is coming soon. It's a bit of an odd tradition, but a similar practice has been taking places for centuries. Following is a transcript of the video. Groundhog Day Announcer: Our buddy, Punxsutawney Phil! As the tradition goes, every year on February 2, Phil the groundhog comes out of his hole in Punxsutawney, Pennsylvania. If he sees his shadow, we'll supposedly get 6 more weeks of winter. If he doesn't see his shadow, winter is supposedly over. Seems bizarre, right? So, how exactly did groundhogs become the go-to animal for predicting the weather? Bill Murray: That's not bad for a quadruped. You gotta check your mirrors. Just side of your eye. Side of your eye. The tradition comes from Germany. On an old religious holiday called “Candlemas Day,“ the Germans paid attention to the badger. Candlemas Day was the midpoint between the winter solstice and the spring equinox. If the badger saw its shadow, it meant a “second winter“ was coming. When the practice came to the US in 1887, the groundhog was chosen, because badgers aren't native to eastern North America. While it may seem random, there is some logic to turning to the groundhog for weather predictions. Like badgers, groundhogs, also known as woodchucks or whistlepigs, are considered “true hibernators.“ When they emerge from hibernation, it means winter is almost over. In winter months, their body temperature drops 62 degrees. Comparatively, if a human body temperature drops just four degrees, it goes into hypothermia. A groundhog's hibernating heartbeat is only five beats per minute. In warmer months, its heart beats 80 times per minute. Their breathing slows down in winter too. It can go from 16 breaths per minute to about two during hibernation. However, the idea that groundhogs are predicting the weather when they come out of hibernation may be a bit of a stretch. Groundhog Day Announcer: It's six more weeks of winter, it must be! The real reason groundhogs come out of their holes in early February is to look for mates. Mating season is in March, so they wake up a little early to scope out potential partners and then return to their burrow to wait out the winter. Whether the groundhog sees its shadow on February 2 has more to do with the weather that day, than the groundhog itself. After all, Punxsutawney Phil has only been right about 30% of the time. Groundhog Day Announcer: What? Get it right for a change. So we're probably better off listening to meteorologists. Or, just flipping a coin. -------------------------------------------------- Follow Business Insider on Twitter: Follow BI on Facebook: Read more: -------------------------------------------------- Business Insider is the fastest growing business news site in the US. Our mission: to tell you all you need to know about the big world around you. The BI Video team focuses on technology, strategy and science with an emphasis on unique storytelling and data that appeals to the next generation of leaders – the digital generation.
