Sperm Races Visualized

YouTube link.

In order to investigate how sperm of two different males compete within the reproductive tract of the female, a researcher at Syracuse University used a fluorescent tag to be able to directly visualize the movement of individual sperm.
Mollie Manier managed to set up live broadcasts of the sperm wars. She engineered male flies whose sperm was loaded with proteins that glow either red or green. By following these glows with a special microscope, Manier captured astounding and beautiful videos of the sperm racing around the female’s genital tract at high speed, like miniature formula-one cars.

Link.  Previously on Neatorama:  The Great Sperm Race.

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Now what we need to see is how the same sperm are affected by different "race tracks". Fair is fair. If someone is going to investigate MFM, they should also look into FMF.
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