Why do elephants flap their ears? Why do some lizards change colour during the day? And why do we have goose-bumps? It's all to do with the ingenious ways of heating up and cooling down. With
Terry Nutkins , Chris Packham and Michaela Strachan.
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Why do elephants flap their ears? Why do some lizards change colour during the day? And why do we have goose-bumps? It's all to do with the ingenious ways of heating up and cooling down. With
Terry Nutkins , Chris Packham and Michaela Strachan.