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What are those white lines jets make in the sky?
San Antonio Express-News· 6 days agoFor almost 30 years, many have seen them as “chemtrails” and think it’s part of a secret mind-control conspiracy. Or an attempt by the government to...
Your morning coffee may be more than a half million years old
Napa Valley Register· 6 days agoUsing genes from coffee plants around the world, researchers built a family tree for the world's...
The Science Behind Yawning
Mercola· 4 days agoIn response, your body triggers a yawn that increases the amount of air you breathe in and increases your blood oxygen level. Researchers have found that when you yawn, it ...
