When you think of hibernation, turtles might not be first to come to mind. The box turtle, however, hibernates up to six months long. During this deep sleep, their heart rate can drop as low as one beat every ten minutes.
Extreme Animal Hibernation
Share the knowledge!
Written By Curiosity Staff May 26, 2015
Wake up with the smartest email in your inbox.
Our best articles a few times a week.