An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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Only about 2% of the world population has green eyes.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
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The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The largest breed of rabbit is the Flemish Giant.
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