From a disembodied torso to a "friendly" robot with unnervingly human facial expressions, here are seven of the most advanced humanoid robots in the world. If you're worried about humanoid robots ...

Dubbed "the world's most advanced robot," the second-generation version of Ameca now comes with the ability to display particularly realistic facial expressions based on its responses to queries.

With dextrous fingers — and the ability to learn from its mistakes, this is one of the most advanced humanoid robots around. However, we don't yet know when it will move out of the prototype phase.