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 ...

As plants disappear, large life on Earth would starve and die. Calculating when that happens has been an effort for decades, with timespans obtained from 100 million to 1 billion years ...