An educated penguin, an agnostic penguin and a violent, smaller, young penguin walk into a snowdrift… You might not be able to make a full joke out of that opening line, but this book practically does continue on from there. Three penguins – each a little different from the other, even if they generally look and definitely smell the same, and God, a subject of their conversation when a butterfly comes along, of all things. The young, hot-headed one (well, in the pictures he wears a woolly hat, he's bound to be hot-headed) leaves in umbrage, leaving just two – which is perfectly timed if you're a dove, and come along telling all the animals to get into Noah's Ark in pairs, as an almighty flood is about to happen…