Deep-sea fish adapt to some of the most extreme conditions on Earth. New research analyzing their evolution finds the same ...

These are the prettiest freshwater fish, from vibrant brook trout and pumpkinseed sunfish to majestic lake sturgeon. Check out how these species made our list!

These are the most visually stunning IGFA world record fish of 2024, including giant snakeheads from Thailand, and snubnose pompano from Seychelles.

A longnose lancetfish washed ashore in a rare appearance in Seaside, Oregon. Seaside Aquarium staff examined the 5-foot-long ...

Species that are popular in the ornamental fish trade are very adaptive by nature. This virtue helps them easily adapt to ...

When told about a strange, fanged fish that had washed ashore on an Oregon beach, the Seaside Aquarium folks knew what kind of fish it was.

Many of us eat, hear about or see baby fish without ever considering their true adult size. A lot of fish that may seem small ...

Aquatic business has grown to include more than 180 display tanks and 12 outdoor ponds. Bill Ballard shines a flashlight onto a male Zaire blue moba as it swims in a tank at Prairie Creek Aquatics, ...

At the base of the Grand Teton Mountain range, a new fish species tinged with green was identified as separate from its blue brethren.

Here are our favorite types of freshwater fish you can keep as a pet. If you're in the throes of setting up a home aquarium, ...

Researchers saw the longfin batfish “swimming calmingly around the rocky bottom,” interacting with other fish near a buoy line and feeding on algae. The longfin batfish were likely brought to Mexico ...

An aquarium keeper looked at his newest find. He didn’t know it right away, but he’d discovered a new species. Farham Sangma, a “fish hobbyist” who “often collects fish for the aquarium ...