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 ...

MILWAUKEE, Nov. 27 (UPI) -- U.S. scientists say they've determined two fish that share much in common genetically appear to have markedly different abilities to grow. The study, led by scientists at ...

With the increased use of aquatic animals in research, especially zebrafish and African clawed frogs, there has been an increased interest in how to best address their psychological wellbeing. In this ...