Black white sperm swimming upstream


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27 May Superimposed photographs of a human sperm cell swimming upstream along the wall of a microfluidic channel, with overlaid virtual tracer.

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Rheotaxis facilitates upstream navigation of mammalian sperm cells

Description:Some want to kill sperm cells. Some want to buy or sell them. Some fret over their failure to get the job done. Why can't we just appreciate sperm for the amazing little wrigglers that they are? After all, without sperm, the world would be a very lonely place. So here are 15 fascinating facts about sperm, from Dr.

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Views: 4107 Date: 2018-07-25 Favorited: 89 favorites

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Love the SLOW sucking sounds! Just the way I like it. Nice and quiet too. Love me long time Honey!
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Shitzzz......what a whore...she is married
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