Charles Darwin had an obsession which made other scientists laugh. He thought earthworms were special. He just didn’t know how. Over 40 years of study, Darwin played the bassoon to see if they could hear, laid out a picnic treasure hunt to see how well they could smell, and carried out many other bizarre (and entirely true) experiments. And then, one day, he realised that the worms’ superpower lay in their poo - and that without it, there would be no plants and no animals on earth.
Written by Polly Owen & Gwen Milward