A jellyfish has no brain, heart, or blood — and its body is 95% water.
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The Nile River has supported civilizations for thousands of years.
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The human brain can process visual information in as little as 13 milliseconds.
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Hyenas have powerful jaws adapted for crushing bone.
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Multitasking often reduces overall task performance.
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The stegosaurus had a brain about the size of a walnut.
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A narwhal’s tusk is actually an elongated tooth.
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The Earth's axis is tilted about 23.5 degrees.
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The Earth spins at 1000 mph.
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