David Attenborough guides the viewer through a miniature universe teeming with life, never normally seen, yet all around us. New technology reveals surreal vistas and their extraordinary inhabitants.

Originally produced and broadcast in 2005. Special features: interview with Mike Salisbury; original score; trailers.

Disc 1.Invasion of the land / producer, Peter Bassett ; Taking to the air / producer, Mike Salisbury ; Silk spinners / producer, Bridget Appleby -- disc 2. Intimate relations / producer, Stephen Dunleavy ; Supersocieties / producer, Stephen Dunleavy ; Special features.