The Mariana Trench is so deep that Mount Everest could be placed inside it and still be covered by over a mile of water.
Fact #3749
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There are deep ocean creatures that glow.
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Dolphins can recognize themselves in mirrors, a sign of self-awareness.
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A sea turtle can navigate back to its birthplace decades later.
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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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Some butterflies migrate seasonally.
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Some deep‑sea fish create their own light.
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Sea lions can rotate their rear flippers forward to walk on land.
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Deep-sea creatures often have bioluminescent organs for communication.
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