Many people might think of food or exercise when they hear the word "protein." But proteins perform a vast array of functions within our bodies. In this episode, we'll visit a Japanese laboratory where most of the main proteins of the human body can now be produced artificially. And we'll see how human and even insect proteins can be put to work in drugs and medical sensors. We'll also get a look at a new device to remove pollutants from ocean surfaces. [J-Innovators] A Floating Ocean Surface Skimmer