Survival of the fittest is expertly exemplified by one marine creature: Minnesota’s freshwater mussels. These shellfish are being applauded for their unique and clever survival strategy. They ...

Piranha is a general name used to describe a group of freshwater fish with a fearsome reputation when it comes to feeding. There are between 40 and 60 different species; none grow larger than two feet ...

We asked the experts how to make smart choices at the fish counter, for your health and for the environment. Credit...Photo Illustration by The New York Times; Shutterstock Supported by By Sofia ...