Groundhogs are true hibernators and can reduce their heartbeat from 80 beats per minute while in deep sleep below the frostline in their winter burrows. What is an average hibernating heart rate for these marmots?
Correct! Groundhogs can slow their heartrates to an incredibly low 4-5 beats per minute. That is about as low as it goes! Learn more about groundhogs at Hinterland Who’s Who!
