From National Geographic
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What were the oldest animals to glow? A new study offers a clue.
Hundreds of plants, fungi, and animals can do it. Now scientists think bioluminescence may have evolved 540 million years ago in Earth’s ancient oceans.
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Meet the mom who took on toxic waste—and won
The Love Canal disaster transformed homemaker Lois Gibbs into an environmental warrior after she learned her Niagara Falls neighborhood was built on poisoned ground.