A soundscape for Episode 6. A full playout of Pan’s dwindling as her system shuts down. Cicadas accelerate into oblivion, whales call from the deep, birds morph into monkeys, waves crash into white noise. 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

#Forest 404