More than 60% of the water in a wood frog's body can freeze solid each winter: its heart stops, it stops breathing, and for more than 7 months it can lie essentially a frogsicle, before it thaws out in spring and simply hops away - Space Daily

Freezing solid is supposed to be the end. Ice forming inside a body generally stops the chemistry of life. For almost every animal on Earth, that is exactly how it works. The wood frog did not get the memo. Each winter, Rana sylvatica lets a large share of th…