Spot, the four-legged robot from Boston Dynamics Inc., is perhaps best known for its viral dance routines to songs like “Uptown Funk.” But beyond its playful antics, Spot’s ability to climb stairs and open doors signals a potentially controversial ...

Boston Dynamics has released a new explanation of one of Atlas’s most striking behaviors. It’s an eerie, contortion-like way to get up from the ground. The motion, long visible in widely shared videos of the humanoid robot, has often puzzled viewers ...