A soundscape to go with Episode 2. A full playout of the chorus of frogs that Pan plays to the Interlocutor. Frogs from across the world: burping, croaking, mating. Headphones are best. With sound design by Graham Wild and Becky Ripley.

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