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).
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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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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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Cows can sleep standing up, but they can only dream lying down.
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