We stock prisons with weight rooms and libraries, because what our society really needs is stronger, smarter criminals. Now we're giving better muscles to robots, based on a combination of biomimetics and mechatronics. If robots are going to eventually destroy us anyway, we might as well make them look like us.
A project called "Airic's_arm" is a new robotic appendage that looks rather like the original Terminator, and has a musculoskeletal structure resembling our own. Click here--the video has to be seen to be believed, and it really drives home two points: 1) the fine motor control robots can now achieve is quite impressive, and 2) robots have terrible handwriting.