Warum haben wir schiefe Zähne, unsere Vorfahren aber nicht?  – G. Richard Scott

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A 5-minute video from Bleib neugierig — TED-Ed: “Warum haben wir schiefe Zähne, unsere Vorfahren aber nicht?  – G. Richard Scott”.

Video by Bleib neugierig — TED-Ed, played through YouTube's embedded player.

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