e s f home link - e s f college of environmental science and forestry
e s f home link - e s f college of environmental science and forestry

Groundhogs and Hibernation Nature in Your Backyard


Groundhogs 2:00

Groundhogs hibernate in the winter. Their heartbeat slows from 80 beats per minute to only four or five while their body temperature drops from 98 degrees to as low as 38.