The Earth's crust is thinner beneath oceans.
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Certain whales migrate thousands of miles annually.
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Public health sanitation reforms reduced disease outbreaks.
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A squid can propel itself rapidly by jetting water.
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Some deep-sea creatures produce their own light through bioluminescence.
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More than 70% of Earth's oxygen is produced by marine plants, primarily phytoplankton.
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In 1796, Edward Jenner developed the world's first vaccine by using cowpox material to induce immunity against smallpox, a breakthrough that led to the disease's global eradication.
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Octopuses solve mazes.
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The Earth's oceans absorb large amounts of carbon dioxide.
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