Computer Assisted-semen-analysis

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Sperm has fooled scientists for centuries: they don't 'swim', they move with as its tail 'spins'
science

Sperm has fooled scientists for centuries: they don't 'swim', they move with as its tail 'spins'

Sperm 'drills' into the fluid like a spinning top by rotating around itself whilst its tilted axis rotates around the centre.