How pleasant to meet Piltdown Man
The fount of our whole human clan:
With Lucy his wife
They’re the source of all life
Dating back before records began.

Think, on the other hand, how disgusted our primitive ancestors would be to encounter us, now that we’ve laid waste the world that brought them into being. Although – a pedantic note here – I believe there are now question-marks hanging over Lucy’s identity, in some scholarly circles.