A wood frog, Rana sylvatica (shown), survives freezing winter temperatures with a kind of biological antifreeze that prevent ice from forming in its blood. In this time-lapse video, a frog frozen for 24 hours takes 10 hours of thawing to spring back to life.
Credit: Jon Costanzo/CompanyofBiologists

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…