During hibernation, frogs stop eating and slow down their metabolism to survive the cold winter. When a body of water is covered with ice, some frogs slumber underwater, while others spend their hibernation period on land in caves or dark, damp places.
During hibernation, frogs require less oxygen and a certain amount of carbon dioxide accumulates in their bodies. The skin of frogs can carry out gas exchange, so during hibernation, frogs can absorb oxygen and emit carbon dioxide directly through the skin surface. This means that they can exchange gases through their skin to maintain life activities during hibernation, and they can survive the hibernation period with limited oxygen supply even when the water body is covered by ice.
It should be pointed out that not all frog species hibernate, and the way they hibernate varies depending on the species and living environment.
