Adaptación :  colonizando el planeta Tierra.  III,  Perpetuando la especie / 
 Consiguiendo energía  Adaptación.  Capítulo 3 English title:  Adaptation :  colonising planet Earth.  III,  Perpetuating the species  Perpetuating the species 
productor, Javier Linares ; dirección, guión y realización, Fernando González-I.Sitges ; naturalistas, Carlos Sanz, Eva González, José Peña. 
, Spain 
 - 1 online resource (2 video files (52 min. each)) :  sound, color 
 - Vida salvaje .
 - Vida salvaje (Madrid, Spain) .
<br/><br/> Series statement from the producer's webpage. 
<br/><br/>Documentary coordinator, Ana de la Vega ; editors, Renato Sanjuan, Natalia Sainz de Rozas; post-production editors, Javier Pingarrón, Natalia Sainz de Rozas; music, Santi Vega.  Documentary coordinator, Ana de la Vega ; editors, Renato Sanjuan, Natalia Sainz de Rozas; post-production editors, Javier Pingarrón, Natalia Sainz de Rozas; music, Santi Vega. 
<br/><br/>Narrator (Spanish version): José Ángel Juanes. Narrator (English version): Anthony Luke. 
<br/><br/> From the origins of time obtaining food was like obtaining fuel for the engine of life. All species had to face this first challenge on an almost daily basis and they used a whole array of curious strategies. Sharpened, powerful weapons, deadly poisons, perfect camouflage, etc., a complete biological arsenal at the disposal of the species. It was, and still is, an arms race. New acquisitions allowed them to be more competitive when it came to looking for food or avoiding being eaten and the penalty for falling behind was death. -- 
<br/><br/><br/>In Spanish or English. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reproduction.<br/>Adaptation (Biology)<br/>Animals--Reproduction.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Nature films.<br/>Internet videos.<br/>Streaming video.