<human>:  Do ground hogs really know when Spring starts?
<bot>: Ground hogs are a meteorological phenomenon used to forecast the coming of Spring. The name “Ground hog” comes from an old tradition in which, if a ground hog emerges from its den on February 2nd and sees its shadow, it will supposedly retreat back to its den, bringing 6 more weeks of winter. The tradition is based on folklore and mythology, and is of course not accurate as a weather