150 days that a groundhog hibernates, all without eating!
37 degree body temperature during hibernation - down from about 99 degrees!
14 pounds a groundhog could weigh
8 mph is the top speed of a groundhog, too slow to evade a predator like a fox that can hit 25mph
5 heartbeats per minute during hibernation (down from about 80 beats per minute.)
2 breaths per minute during hibernation (down from around 16.)
1 pound of vegetation is how much a groundhog may eat in a single sitting. (Like a 150-pound man eating a 15-pound steak!!)
1/16 inch is how much a groundhog's teeth grow EACH WEEK
Source: National Wildlife Federation