Lurch, a Watusi bull, had the largest horns in the world.
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The colossal squid has the largest eyes in the world.
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The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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