If your aquarium feels a little blah, maybe it’s missing some bold personalities. We’re talking fins that flash like neon signs and colors that could outshine a fashion runway. These fish don’t need a ...

Adding colorful tropical fish to your aquarium is a no-brainer if you love being mesmerized by beautiful colors and patterns. Many people, when they hear the word ‘fish’ think of dull grey fish or the ...

Among aquarium enthusiasts who keep bettas, it is usually the male fish that are known as the "colorful ones." Oftentimes the males are favored over the females not only for their color, but also ...

They help fish swim, but fins also advertise a fish's social standing and health. In a new study, researchers report that for the male bluefin killifish (Lucania goodei), each colorful fin presents ...

Frogfish are some of the most colorful creatures under the sea — and some of the most unique, too. They look more like frogs than fish with their leg-like fins and their quick-snapping jaws, but they ...

Scientists analyzed the DNA of fish in the Galapagos Islands and discovered a colorful new species with white speckles, a study said. Photo from Getty / iStockphoto Swimming through the crystal blue ...