The blob fish's 'sad face' is a result of its body tissues decompressing after being brought to the surface.
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The heart pumps blood through approximately 60,000 miles of blood vessels.
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An ostrich's eye is larger than its brain.
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The Thirty Years’ War affected much of Central Europe.
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The learned helplessness theory explains passivity after repeated failure.
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Your brain uses 20% of your energy.
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The Earth's inner core is primarily iron and nickel.
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The Earth is slightly flattened at the poles.
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