The UN assessment of the state of migratory freshwater fish revealed an 81% decline in the last 50 years.

Some of the longest, most important migrations of species on Earth are happening beneath the surface of the world's rivers ...

A colorful reef fish from the Maldives is the first new-to-science species to be described by a Maldivian scientist. Cirrhilabrus finifenmaa has been named by Ahmed Najeeb, a biologist from the ...

Thousands of fish species are facing "catastrophic" decline — threatening the health, food security and livelihoods of hundreds of millions of people around the world. New research shows that ...

The asprete, a rare freshwater fish found in Romania, was once considered extinct after dam construction destroyed much of its habitat. The fish’s existence was confirmed by surveys conducted in the ...