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.
Discover 11,128,835 listings and 278,312 playable programmes from the BBC
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.