Photo: 3D4Medical.com/GettyFrom Time Magazine:
Though sperm are generally considered pretty wriggly little guys, before they are launched into action, so to speak, they aren't racing around. While researchers have long known that what gets them swimming is a change in internal pH level—the more alkaline their pH, the more aggressively they swim—until now, the mechanism by which sperm rapidly drop protons, which changes their pH from acidic to alkaline, wasn't clear. According to this new study, published in the journal Cell, sperm are equipped with tons of tiny little pores that, when open, enable them to release protons and get a move on.
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