Some animals survive conditions so cold, they seem to defy the laws of nature. The Emperor penguin is the only animal that breeds in the Antarctic winter, raising chicks on sea ice. North American Wood Frogs also withstand harsh winters but with a miraculous trick-they survive being frozen solid.

Encoded with permission for digital streaming by Infobase on December 24, 2014. Learn360 is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

Antarctic Exploration(2:57) -- Breeding Colony Research (2:19) -- Antarctic Penguins (3:16) -- Scott's Expedition (3:30) -- Amphibian Skin (1:40) -- Marsh Frog Revival (4:07) -- Frog Emerges from Frozen State (2:50) -- Credits: Life on Ice: Attenborough's Natural Curiosities, Series 2 (0:44).