How Did Plants Develop Photosynthesis?

For a large chunk of the Earth’s existence, flora have used the Sun’s light to turn the planet green

(Mark Zibert / Vaughan Hannigan)
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Acquiring the machinery of photosynthesis gave those early organisms a huge evolutionary advantage, one they readily exploited. Over the millions of years that followed, this ability to make use of the Sun’s energy helped give rise to the great diversity of living things on the planet. Then, as now, light equaled life.

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