The rat race. I’ve heard the phrase a hundred times, but never understood how it came to mean our tiresome work life. Turns out it is an analogy to lab rats racing through a maze, expending great ...

Getting a rat to run a maze is a lot easier. Granted, designing and building the maze takes a lot of upfront effort. But once that’s done, the lab technician can go home. Just put a piece of cheese at ...

There’s a saying that in a big city you are never more than six feet away from a rat. It’s an urban myth, but scientists are warning cities across the globe are becoming far rattier, and the boom is ...