Both researchers are watching a merry-looking breed whose trademark name is Glofish – America's first genetically engineered pet. Courtenay, a USGS research fishery biologist and specialist in ...

In early January, Austin-based Yorktown Technologies intends to start selling GloFish, a genetically modified (GM) strain of zebrafish that glows red under ultraviolet or black-light. If all goes ...

GloFish are controversial because they are genetically modified. Many aquarists, especially experienced ones, prefer a natural-looking aquarium and scoff at the idea of keeping genetically ...