My little boy, Pip, got back from school full of excitement. They had been looking at mini-beasts and, apart from the slug that a little girl stamped on, it seems to have been a memorable morning. But then he told me about the ‘great big fat caterpillar’ – what does that turn into, I asked.

‘A hedgehog,’ Pip responded.

Now, remember the book, I pursued, The Very Hungry Caterpillar … what did that turn into – it had beautiful wings.

‘A hedgehog with wings,’ Pip concluded – and dashed outside.

I think he was teasing me (he is a canny four-year-old)! I hope so, otherwise my gentle introductions into the world of zoology have gone seriously wrong – time to start reading him A Prickly Affair at bed time I reckon!