General Note: Closed-captioned for the hearing impaired.LSC 33.20For home use only.Special features include: behind-the-scenes, featurettes, photo essays, time-lapse footage.Widescreen version.Originally broadcast as individual episodes of the television series The nature of things.Documentary.Disc label title.DVDs.
Creation/Production Credits Note: Production credits vary by episode.
Participant or Performer Note: Narrator, David Suzuki.