How do frogs survive winter? Why don't they freeze to death?

The Frog That Can Hold In Its Pee For Up To 8 Months

Suspended animation - Wikipedia

How do frogs survive late spring snows?

Pristine Ponds Be Gone! - Wildlife Ponds - Humane Gardener

Frozen frogs: The skill that helps them survive the winter

These Zombie Wood Frogs Literally Freeze To Survive the Northern Winter - The Wild Canadian Year

How do frogs survive winter? - Reptiles & Amphibians - Quora

Do Frogs Estivate in Mud?

How Do Frogs Survive in Winter? By Freezing!