Captain Matt Chipperfield discusses dead fish, water pollution, and concerns about water quality at the Guana Preserve in St.

A polluted river in Mexico may be scrambling the love lives of two small fish species — so much so that it may be erasing the line between them. Downstream of the town of Calnali, in central Mexico, ...

The byproducts of modern society appear to be messing with the love life of two tiny fish species that have long coexisted in Mexican rivers. A Stanford-led study found that the two swordtail fish ...

Fish sellers say comments by Iraq’s environment minister have crippled business and threatened hundreds of families’ ...

Hundreds of dead fish have washed up on the Barnai River in northern region of the country, raising fears of severe water pollution and prompting residents to avoid contact with the water. The river, ...

“This is St. Peter’s fish, the fish Jesus fed the multitudes,” he says, his raspy voice resonating like a preacher’s. Unlike Jesus, however, Martin does not give his fish away. Each day he sells ...