Worms are everywhere - in our soils, our seas, and our selves. Dive down a worm burrow on this sound-rich odyssey to meet our most numerous and intimate animal companion.

Science writer Jack Monaghan will guide you through gardens and farms, factories and laboratories to look afresh at our wriggling, wonderful world.

Producer and narrator: Jack Monaghan
Sound design and original music: Robert Moutrey
Executive producer: Bridget Harney
A Pronk production for BBC Radio 4