Vegetation has been a key part of the Earth's surface for only about 450 million years. With the progression of the terrestrial landscape from bare surfaces to widespread coverage by plants ...

Scientists think they have the answer to a puzzle that baffled even Charles Darwin: How flowers evolved and spread to become the dominant plants on Earth. Flowering plants, or angiosperms ...

where more of the Earth's landmass is located. When CO2 levels rise, many plants increase their rate of photosynthesis, because they can more efficiently remove carbon from the air, and conserve ...