Was Sheldon Right? Episode 4: Can You Really Make a Glowing Fish Night-Light?

Sheldon proposes creating a night-light by inserting glowing jellyfish DNA into a fish—but is that science fiction or real genetic engineering? In this episode, we explore fluorescent proteins, genetically modified animals, and the surprising history of fish that really do glow. The science behind Sheldon’s strange idea helped transform biological research, although it probably would not illuminate your bedroom.