At some point in the deep past, humans may have come frighteningly close to disappearing altogether. Here’s what we know, ...

Add Yahoo as a preferred source to see more of our stories on Google. Very few people live beyond a century. So, if no one had babies anymore, there would probably be no humans left on Earth within ...

Humans will likely go extinct eventually, leaving behind a planet that has to adjust in their wake. While there is no true consensus as to what a human-free world will look like, there are a number of ...