• 21
    a co-production of BBC and Thirteen ; producer, Miles Barton.
    [United States] : BBC Earth ; Burbank, CA : Distributed by Warner Home Video, c2012.
    DVD
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  • 22
    [Toronto, Ont.] : Canadian Broadcasting Corp., 2009 : CBC Learning [distributor], [2010] [Letterboxed]
    DVD
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  • 23
    BBC ; produced and directed by Dan Child ; produced for NOVA by Melanie Wallace.
    [United States] : PBS Distribution, c2010. Widescreen.
    DVD
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  • 24
    a production of Passion Pictures, Thirteen and the BBC in association with WNET New York Public Media ; produced by David Allen.
    [Arlington, Va.] : PBS : PBS Distribution, c2011. Widescreen.
    DVD
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  • 25
    CBC Learning in association with National Geographic Channel; series producer, Michael Allder; narrated by David Suzuki.
    Toronto : CBC Learning [distributor], 2010.
    DVD
    options Options

  • 26
    BBC Earth ; 2 Entertain ; a BBC/Animal Planet co-production ; produced by Ian Gray & Mary Summerill.
    Burbank, CA : BBC/Warner Home Video, c2011. Widescreen version.
    DVD
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  • 27
    2 Entertain ; BBC ; BBC Earth ; a BBC/Discovery Channel/France Television co-production ; series producer, Dale Templar ; executive producer, Brian Leith ; BBC Productions Bristol/Wales.
    [London] : BBC Earth : 2 Entertain Video ; Burbank, CA : Distributed in the USA and Canada by Warner Home Video, Inc., [2011]
    DVD
    options Options