A love letter to the forests of the world. Written by David Haskell, read by Pearl Mackie. The first forests grew 400 million years ago. Time enough for them to have listened to this world and discovered how to bring about new life. Produced by Eliza Lomas and Becky Ripley.

And don’t forget to take part in our Forest 404 Experiment to see how you respond to natural sounds at: bbc.co.uk/forest

#Forest404