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A study at the University of Jerusalem showed that global sperm count and sperm concentration had declined by more than 50% in the last 46 years. 53 countries were checked in the study from all continents. The decline is not only bad for men’s fertility but also for men’s general health.

 

Photo by: https://www.pexels.com/photo/an-illustration-of-fertilization-8680388/

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Night vision for mice

A team of researchers has succeeded in giving mice night vision. Most animals are limited in the wavelengths they can see, between 400 and 700

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