The centre of a penguin huddle can reach temperatures of up to 37 degrees C! How exactly does piling in help these snow animals stay so warm? Subscribe: bit.ly/BBCEarthSub Watch more: Planet Earth bit.ly/PlanetEarthPlaylist Blue Planet bit.ly/BluePlanetPlaylist Planet Earth II bit.ly/PlanetEarthIIPlaylist Planet Dinosaur bit.ly/PlanetDinoPlaylist Taken from Snow Animals Winter is tough in the natural world – unless you plan ahead. Snow animals reveals the clever ways animals prepare and deal with the winter months, and examines the science behind their behaviour Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this. Want to share your views with the team? Join our BBC Studios Voice: www.bbcstudiosvoice.com/register This is a page from BBC Studios who help fund new BBC programmes. Service information and feedback: bbcworldwide.com/vod-feedback--contact-details.aspx

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