Prosthetic body parts have been around in many shapes and forms for thousands of years. But up until just a few decades ago, they were often uncomfortable, provided little to no control for the user and didn’t look all that great either.

Fast-forward to the present day and thanks to advances in medicine, robotics and neuroscience, a number of bionic body parts have been developed that have the power to be truly life-changing for those who need them the most, from a bionic eye to an artificial kidney to a thought-controlled robotic leg.

The most advanced bionic body parts tend to be arms and legs, because they’re the easiest to develop and there’s the most need for them. But over the past few years scientists have created fully working body parts that provide sensory feedback, like a bionic ear, as well as bionic organs, like a pancreas and kidney.