Glow-in-the-Dark Fish: Bright Idea or Environmental Threat?

The World
The World
A Texas company has been selling genetically modified fluorescent zebra fish called 'GloFish' for nearly 10 years. But now the company is offering a new kind of glow-in-the-dark fish. And it's got environmentalists concerned. Science journalist Adrianne Appel has written an article about 'GloFish' in the Washington Post. She speaks with anchor Lisa Mullins.
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