Comments by "LaGrandeBayou" (@LaGrandeBayou) on "Why Did Pterosaurs Have Head Crests?" video.

  1. "Specially the crest of pterosaurs But what was its purpose" Evolution has used the crest to eventually have a significant meaning in courtship. The crest wasn't a "rudder" but instead was needed as a built-in balancing stabilizer, to the head and beak while in flight.
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