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What You Don’t Know About Sperm (nautil.us)

submitted 7 months ago by [email protected] to c/[email protected]

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[–] [email protected] 7 points 7 months ago

This is a guess but the fluid dynamics likely changes? As the size of the group increases the Reynolds number probably increases making inertia a significant factor.

Individual human runners in air is maybe a bad analogy think more like honey where every stroke pushes you back as much as it pushes you forward.

This article might interest you https://doi.org/10.1529%2Fbiophysj.107.118257

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