Have you ever wondered what the world would be like if everyone suddenly disappeared? What would happen to all our stuff? What would happen to our houses, our schools, our neighborhoods, our cities?

The curious minds at What If explore what would happen if dinosaurs never went extinct and changed human evolution, imagining ...

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 ...