New research shows sperm generate corkscrew-like fluid vortices that spin in sync with their tails, providing an unexpected boost. Reading time 2 minutes When we learn about “the birds and the bees,” ...
A close-up of a colony of salps swimming in the ocean off the coast of Kailua-Kona, Hawaii. Credit: Brad Gemmell Salps are small, transparent barrel-shaped jelly creatures. They are sometimes confused ...
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