A 3D filming technique has revealed that human sperm really swim with a corkscrew motion like otters, rather than wiggling like eels due to their 'wonky tails'. Developed by scientists led from ...

Worms that create intricate, tangled blobs with their bodies can disentangle in milliseconds when threatened. This speedy unscrambling is possible because each worm wriggles in a special corkscrew ...

While sperm usually gyrate in a corkscrew-like motion, this is the first time they have been seen slithering along a surface using a snake-like motion. The movement helps them swim up to 50 per cent ...