Freshwater fish live in rivers, lakes, and ponds with low salt content, while saltwater fish come from oceans with high salinity. This difference affects everything—from tank setup and maintenance to ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. With some populations aged in their 70s on average and new ...

Some of the longest, most important migrations of species on Earth are happening beneath the surface of the world's rivers and many are rapidly collapsing, according to a major new assessment by the ...

Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo. Aliza ...

Life revolves around water in this quiet fishing village in Brazil’s southern Pantanal, the world’s largest wetland. Here, a ...

A sweeping global report finds that migratory freshwater fish are in steep decline, with populations down roughly 81% since 1970. These species depend on long, connected rivers, but dams and human ...

As an avid fly fisherman, Keith Van de Riet spends a lot of time trying to think like a fish does. He does likewise in his day job as professor at the University of Kansas School of Architecture & ...

A woman selling fish in a market in the Mekong Delta, Vietnam. From Ancient Egypt to the Zhou Dynasty to first century Palestine, fish have symbolized wealth and abundance, demonstrating the ancient ...