Four billion years ago, Earth was violent, hot, and unstable. Yet new research suggests that by then, life had already ...
Scientists uncover evidence that all life on Earth traces back to a single ancestor, dating back 4.2 billion years, far ...
Recent fossil finds could mean that "Lucy" wasn't our direct ancestor, some scientists say. Others strongly disagree.
Early human ancestors called the LRJ Group lived in Europe for 80 generations, intermingling with Neanderthals, before ...