Bonus features: Nature's half acre : a short film; searching for nature's mysteries; adventure in wildwood heart; backstage with Roy Disney at Disney's Animal Kingdom: butterflies; tribute to Winston Hibler; filmmakers' journal; collectors' corner; original theatrical trailers.
Introduction by Roy Disney -- Secrets of life / producer, Ben Sharpsteen ; written and directed by James Algar ; narrator, Winston Hibler -- Perri / produced and narrated by Winston Hibler ; written by Ralph Wright, Winston Hibler ; directed by N. Paul Kenworthy, Jr., Ralph Wright.
Originally released as two episodes of the Disney television program True life adventures originally airing 1975-1976.
Secrets of life explores some of the world's most fascinating natural phenomena. Perri follows the life of a squirrel.
DVD ; Region 1 ; full screen presentation ; Dolby Digital mono.