Los herederos del arca.  El siglo de los grandes cambios / 
 Siglo de los grandes cambios  Herederos del arca.  Capítulo 1 English title:  Heirs to the ark.  The century of the great changes  Heirs to the ark  Century of the great changes 
dirección y guión, Fernando González Sitges ; producido por Óscar Portillo, José Maldonado, Tomeu Pons ; montaje, Fernando González Sitges ; documentación, Ana de la Vega. 
, Spain 
 - 1 online resource (2 video files (52 min. each)) :  sound, color 
<br/><br/>Cinematographer, Mario Alonso; editors, Justiniano Martínez, Antonio Jiménez, Santiago Villa; music, Santi Vega.  Cinematographer, Mario Alonso; editors, Justiniano Martínez, Antonio Jiménez, Santiago Villa; music, Santi Vega. 
<br/><br/>Narrator (Spanish version): Jose Ángel Juanes. Narrator (English version): Robert K. Jones, Drew Crosby. 
<br/><br/> General approach to the series. Introduction to the great changes in conservation that have taken place since the men started to be interested in protecting the natural word surrounding him. History of the zoos from the very first collection of animals to zoo-immersion. Introduction to the main protagonists of the series, their problems, their challenges and their solutions. -- 
<br/><br/><br/>In Spanish or English. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biodiversity conservation.<br/>Wildlife conservation--Africa.<br/>Open-air zoos--Spain.<br/>Ecosystem management.<br/>Zoos--History.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Nature films.<br/>Internet videos.<br/>Streaming video.