Far from its home in Indonesia, a brightly colored creature moved around in an aquarium. Scientists peered into the tank, studying their pet-turned-specimen — and discovered it was a new species.

In the drought-stricken streams of Spring City, Tennessee, a tiny, bright-colored minnow called the laurel dace is fighting for survival, and the entire town is stepping in to help. As weather ...

CHARLESTON, W.V.— In response to a decade of action from conservation groups, the U.S. Fish and Wildlife Service today finalized critical habitat protection for the candy darter, a small, brightly ...