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  • Emperor penguin (Aptenodytes forsteri) chick under parents feet
    Rights: Dr Katja Riedel Published 21 June 2007 Size: 160 KB Referencing Hub media

    An emperor penguin (Aptenodytes forsteri) chick at guard stage, keeping warm. Keeping warm involves stopping the transfer of heat from one object to another. This can be done by insulating the object. Trapping air in layers is a very effective way of insulating an object. Penguins trap air in their feathers.

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