The ocean's twilight zone, between 660 and 3,300 feet deep, contains more fish by mass than all other ocean zones combined.
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A sea lion can hold its breath for several minutes underwater.
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A whale shark is the largest fish in the ocean.
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Prehistoric oceans had different currents than today.
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A googol is the number 1 followed by 100 zeros — the search engine Google is named after it, misspelled.
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Certain whales migrate thousands of miles annually.
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The Pacific Ocean has the most islands of any ocean.
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