The axolotl can regenerate limbs and even parts of its heart.
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There are invisible particles everywhere.
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Particles can exist in multiple states until observed.
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The Earth's atmosphere traps heat through the greenhouse effect.
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Fossilized pollen helps scientists understand ancient ecosystems.
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The checker shadow illusion alters perception of color brightness.
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The Ames room illusion distorts perceived size and distance.
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The Earth's atmosphere is composed mostly of nitrogen and oxygen.
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The Human Genome Project mapped the entire human genetic sequence.
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