Mr Groundhog Preparing For Hibernation 

While hibernating, a groundhog's body temperature drops from about 99 degrees Fahrenheit to as low as 37 degrees Fahrenheit, the National Wildlife Federation reports. Their heartbeat slows from about 80 beats per minute to just five beats per minute, and their breathing slows from about 16 breaths per minute to as few as two breaths per minute. - www.reconnectwithnature.org