revolverzanbolt
revolverzanbolt t1_isg1zei wrote
Reply to comment by myeff in 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
I did not realise sperm were big enough that you could see them with 17th century magnification.
revolverzanbolt t1_izqw78q wrote
Reply to comment by slylock215 in Mr Show- Operation Hell on Earth. by timeye13
The brown face