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Mars has a reddish appearance, due to iron oxide prevalent on its surface.
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Aspirin was first discovered in 1853 by a French chemist named Charles Frederic Gerhardt.
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Humans have dormant genes that can direct the body to grow new limbs after an injury.
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The International Space Station travels at an average speed of 27,700 km/h.
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The world's largest amphibian is the giant salamander. It can grow up to 5 ft. in length.
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Only female mosquitoes bite.
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Certain species of tapeworm can grow up to 30 meters in length.
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The International Space Station orbits at an altitude of 350 km above Earth's surface.
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Evidence for the existence of sharks extends back over 450-420 million years.
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The average height of an adult male human is about 1.8 m (5 feet 11 inches) tall.
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