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Warum haben Vögel Federn?
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Warum haben Vögel Federn?
Professor Josef H. Reichholf erklärt die Rätsel der Natur. Diesmal wollte WELT-Autor Michael Miersch wissen, wie die Evolution Federn hervorbringen konnte. Schließlich dauerte es Millionen Jahre von der ersten Feder bis zum ersten fliegenden Vogel.
Video Length: 0
Date Found: March 25, 2009
Date Produced:
View Count: 14
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