U.S. wildlife officials want to add a rare Nevada fish to the list of endangered species. A federal proposal was issued ...

But the fixation on a tiny fish is less about facts and more ... as a key indicator species for the health of a fragile ...

It looks like every other nondescript small fish. But worthless ... likely thousands of years — it was a linchpin in the delta ecosystem, according to Andrew Rypel, an aquatic ecologist at ...

A photographer shares the epiphanies she has had while chronicling underwater jungles off the California coast ...

The flip side is that more water to farmers could mean fewer fish and dirtier water in a fragile ecosystem ... and then you’d have a little, tiny, little green patch in the corner.

The shores of Lake Ontario have recently become the final resting place for thousands of small, silver fish, alarming residents.

Located about 600 kilometers off the coast of West Africa, the Cape Verde Archipelago is a biodiversity hotspot in the middle ...