TUMACÁCORI, Ariz. — The Santa Cruz River is not like most American rivers. If some of its admirers get their wish, it might also become a wildlife refuge unlike any other. Much of its 184-mile length ...

University of Arizona ecologist Michael Bogan (right) shocks the water in a pool in the Nogales Wash while University of Arizona biologist Peter Reinthal and retired U.S. Fish and Wildlife Service ...

In landlocked Arizona, where the Colorado River crisis has put water use under a microscope, a new inland desert fish farm is growing barramundi – a tropical species native to Australia. DATELAND, ...

DATELAND, Ariz. — Storks scatter, white against blue water, as Dan Mohring’s pickup truck rumbles down the dirt road. He’s towing a trailer full of ground-up beef, chicken, fish and nutrient bits ...