Harlequin rasboras are common, colorful aquarium fish that carry with them a slightly deceptive name. Once thought to be a type of rasbora fish, studies showed that they were different enough that ...

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Pointing to its battle against an evasive species and threats posed by climate change, the Fish and Wildlife Service on Friday extended Endangered Species Act protection to a small, colorful fish ...

n response to a petition and lawsuit from the Center for Biological Diversity, the U.S. Fish and Wildlife Service protected the Barrens topminnow today under the Endangered Species Act. The small, ...

Species are fizzling out of existence at a rate faster than any other time in human history—and no one is more aware of that fact than National Geographic photographer Joel Sartore. After 13 years of ...

Fishkeeping is a popular hobby enjoyed by over 12 million American households. An aquarium filled with colorful freshwater fish can add natural beauty to your home and help you learn more about marine ...

Beneath the ocean’s surface lies a world bursting with color—far more vibrant than many of us realize. From neon-bright fish to spotted crustaceans, some of the most colorful sea animals on the planet ...

As light shines steadily on a silver slip of a fish, minuscule dots on the fish start flashing: blue, yellow, blue, yellow. The bodies “do not glow like luminous fish,” Masakazu Iwasaka, an ...