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TIL that a study from 2016 identified an overall 57% diminution in mean sperm concentration over the past 35 years in North America, Europe, Asia and Africa. Reports in South America indicated no significant alteration. An increasing trend of sperm concentration was identified only in Australia.

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via reddit.com

wonL8 TIL shoulders are a muscle (yes don’t judge me 💀)
9PpX TIL Earth is the densest planet in the solar system.
MeKdK TIL that in 1905 Coca-Cola revealed the secret formula of their beverage to Rabbi Tobias Geffen, on condition that he not divulge it, so that he could determine whether it was kosher. He required a couple of tweeks, but was then able to certify Coca-Cola as kosher.
logJr TIL- The longest ever time between Twins being born was 87 days
Zw4B TIL that regardless of what service you get your weather information from, almost all of the data comes from the same place. NOAA has the only nationwide weather radar and operates the only weather satellites in the US. It freely distributes it’s information into the public domain.