Certain fish can inflate their bodies to appear larger.
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Learning involves changes in neural connections.
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A sea anemone uses stinging cells to capture prey.
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In 1953, Watson and Crick described the double-helix structure of DNA.
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The human brain continues to develop into early adulthood.
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The human skeleton renews itself over time.
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Octopuses have three hearts and blue blood.
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The Earth's core generates geothermal heat.
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Some insects have compound eyes made of many lenses.
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