Attenborough’s Wonder of Eggs

Natural world / 8pm / BBC2

So familiar yet so remarkable, the bird’s egg is strong enough to bear the load of a parent sitting on it and fragile enough to enable a weak chick to break out. Sir David Attenborough tackles the remarkable properties of an object that’s always fascinated him in this lively one-off full of ‘did you know?’ facts.

Sir David goes to work on an egg