Originally produced as an episode of the television series: Nature; aired on October 2, 2019.
Documentary.
Program content: ©2019.
Composer, Fraser Purdie.
Narrator, David Scheel.
DVD; NTSC, Region 1; widescreen presentation; 5.1 surround.
English subtitles for the deaf and hard-of-hearing (SDH); English descriptive audio track for people with visual disabilities.
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