BOT or NOT? This special series explores the evolving relationship between humans and machines, examining the ways that robots, artificial intelligence and automation are impacting our work and lives.

An army of more than 4,000 marching doglike robots is a vaguely menacing sight, even in a simulation. But it may point the way for machines to learn new tricks. In the simulation, the machines—called ...

What if your childhood Tamagotchi could step off the screen and into the real world? Imagine a tiny robot, complete with blinking eyes and lifelike movements, responding to your voice and following ...