Eli5: Why do most gastropods have right side/ clockwise spiraling shells? What is the advantage?
In: Biology
There doesn’t have to be one. Evolution is not about creating a perfect design, it’s about creating one that works well enough. In this case there is no real advantage to having shell that spirals a particular way, it just so happens that that’s the way most originally evolved, and there was no pressure to change that design.
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