TIL: Sperms were thought to move by wiggling their tails side-to-side, like eels, for 350 years. But research shows that they roll as they move forward like a spinning top. thenewsminute.com Submitted by vect77 t3_y4rvtv on October 15, 2022 at 4:14 PM in todayilearned 191 comments 2,840
Sandvich1015 t1_isrxvi9 wrote on October 18, 2022 at 7:10 AM are you saying that the urethra has rifling like a gun to cause sperm to spin? Permalink 1
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