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 ...

Florida is home to some of the most remarkable freshwater life in North America, and few species illustrate this better than the American Flagfish (Jordanella floridae). Found naturally nowhere else ...

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 ...

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 ...

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Choosing the right pet fish can make caring for an aquarium feel simple and rewarding, especially for children who are just getting started. Choosing a pet fish for a child can be a wonderful way to ...

Add Yahoo as a preferred source to see more of our stories on Google. American Flagfish are only three inches in length, yet they punch well above their weight in ecological importance. (Provided ...