When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
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If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
One human hair can support 3 ounces.
191
A cow produces around 200,000 glasses of milk in her lifetime.
373
You forget 90% of your dreams.
256
Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
13