We test whether jewel cichlids make effective bait while chasing exotic and aggressive species.

Dozens of Mayan cichlids are turning up dead, leaving fish keepers and anglers searching for answers. Once thriving in warm, ...

"Its breeding capacity is so high." Experts issue warning as harmful creatures spread in crucial waterways: 'Now it's ...

How did the complexity of many organisms living today evolve from the simpler body plans of their ancestors? This is a central question in biology. Take our hands, for example: Every time we type a ...

To distinguish between the top and the bottom side of our limbs, nature “redeployed” ancient genes from the midline fins of fish. This is the ...

On a March morning in the suburbs of Thiruvananthapuram, Kerala state’s capital in southern India, a group of fishers were ...

The biology of the introduced species Clarias gariepinus in lagoa Encantada (Ilhéus, Bahia State) was studied. Samples were obtained with gillnets between May 2002 and February 2004. All individuals ...

Learn how an ancient fish gene was repurposed to shape the anatomy of human hands.

Freshwater makes up less than three percent of Earth’s water supply but is home to almost half of all fish species. Puerto Rican mountain mullet reside in El Yunque National Forest. Known to the ...