The common zebra danio is a mundane, brownish, tropical freshwater fish commonly bought by folks just starting an aquarium. But a little genetic tweaking and bio-engineering is making the humble zebra ...

At my house we like our pets small, self-contained, and low maintenance. Beautiful, unusual, or weird is even better. But genetically modified? And only $5 each from the local pet store? How could I ...

Move over, Nemo. There's a new star in the fish tank, and this one really shines. The fish, marketed under the trademark name GloFish, are actually zebra danio, an already common pet-trade species.