Sperm was Thought to Move by Wiggling Their Tails Side-to-Side, Just Like Eels. But Recent Research Show That They Roll as They Move Forward Like a Spinning Top.
New research challenges more than three centuries of sperm movement theories. Human sperm appears to swim like wiggling eels under a microscope, tails gyrating to and fro as they seek an egg to fertilize. But do you know how sperm move? For 350 years, sperms were thought to move by wiggling their tails like eels. […]