Plankton are a collection of tiny organisms that live at and beneath the surface of lakes, rivers, ponds, and oceans across the planet. They’re named for the Greek word planktos, meaning to ...

Freshwater mussels are some of the planet's most fascinating and underappreciated animals. With their beautifully colorful shells, diversity of shapes and interesting adornments — including ridges, ...

The northern snakehead (Channa argus) has a most unusual ability: It can breathe outside of the water, as well as within. Juveniles can also wriggle their long, narrow bodies onto land, enabling ...

Over a decade after being relegated to the “world’s ugliest animal,” the blobfish made a resounding comeback and earned the “fish of the year” title in New Zealand. The decidedly ...