A new problem from air pollution: It could be affecting sperm quality
Another reason, if they needed one, for countries to tackle air pollution
Another reason, if they needed one, for countries to tackle air pollution
To stack the odds in their favor, some sperm cells play dirty tricks on their competition.
Human sperm has evolved a reinforced coating on its outer tail which enables it to penetrate thick fluid.
But that doesn't mean their fertility is necessarily affected.
The first step to making spacebabies is to know if we can actually do it.
They started from a mouse's ear tissue cells, which they eventually turned into healthy sperm.
Exposure to new man-made chemicals might be to blame.
Space sperm to the rescue!
The shots were 97% effective but were not very pleasant to handle.
We might be the next to come.
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