Four billion years ago, Earth was violent, hot, and unstable. Yet new research suggests that by then, life had already ...

The latest Virtual Issue from Genome Biology and Evolution highlights articles that provide new insight into the deep evolutionary relationships among extant organisms and the origin of eukaryotes ...

Editor's note: All opinions, columns and letters reflect the views of the individual writer and not necessarily those of the IDS or its staffers. We’ve all seen this poster in our middle school ...