Science
Human sperm roll like ‘playful otters’ as they swim, study finds, contradicting centuries-old beliefs – CNN
For more than 340 years, science believed a man’s sperm wiggled its way to its prize, much like a snake slithering side to side through water. Now, a new study says that movement was an optical illusion.
(CNN)More than 340 years ago, a Dutchman named Antonie van Leeuwenhoek invented a powerful new compound microscope and accidentally discovered the existence of bacteria, a groundbreaking achievement that changed the course of medicine.
Not long after, he decided to look at his ejaculate — definitely not an accident — and discovered tiny, wiggling creatures with tails he dubbed “animalcules.”
These creatures “moved forward owing to the motion of their tails like that of a snake or an eel swim…
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