Sandvich1015 t1_isrxvi9 wrote on October 18, 2022 at 7:10 AM Reply to 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. by vect77 are you saying that the urethra has rifling like a gun to cause sperm to spin? Permalink 1
Sandvich1015 t1_isrxvi9 wrote
Reply to 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. by vect77
are you saying that the urethra has rifling like a gun to cause sperm to spin?