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Barnacles have been evolving and adapting to different niches for over 500 million years. By interpreting the anatomy, morphology and physiology within an evolutionary context, this book offers new insights into the biological adaptation and development of these organisms.Catomerus polymerus and other chthamaloids display an intermediate condition in which the penis is first extended in a vertical arc, then bent on the narrow pedicel to increase the radius of search, but all movements remain relatively slow . We can infer ... The Verrucomorpha, interestingly, have adapted to penial housing and extension in their asymmetrical wall and operculum in a different way. There isanbsp;...

Author: D.T. Anderson
Publisher:Springer Science & Business Media - 1994

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