Japanese robotics professor Masahiro Mori devised the concept of the 'uncanny valley' in 1970. It's the point at which a robot is made to appear so human-like -- if not quite human enough -- that it inspires feelings of uneasiness and revulsion in we mere mortals. In other words, humanoid robots really give us the creeps. (Remember the Black Mirror episode Be Right Back?)
But as androids are being developed to be more and more lifelike, copying human gestures, body language and even speech, our simultaneous fascination/horror at the world of uncannily human-like robotics shows no signs of slowing down.
So sit back and try to relax (or, at least, not squirm in too much horror) as you watch our round up of these mesmerisingly uncanny androids.