GloFish are unique creatures with vivid colors that will brighten up any tank. Scientists created them to help with environmental studies, but they have quickly gained popularity in home aquariums.

Since Yorktown Technologies first sold its genetically modified pet — the GloFish — in 2003, the fluorescent fish, an altered variety of zebra fish, has become a popular aquarium item, with millions ...

Back in 2003, biotech company Yorktown Technologies developed a genetically modified fluorescent fish that was neon-bright and glowed in the dark under black light. Since that time, the company has ...