Gila topminnows return to the Santa Cruz River after a 10-year absence.
Federal decision criticized by environmentalists who say data used was too "theoretical."
Reader criticism for wolf plan, proposal for Ina, tribute to Burney Starks.
Letters on library materials, Mexican wolves plan, carry-on bags, animal center payments.
At least 109 wolves are spread among forested lands in southwestern New Mexico and southeastern Arizona.
A little more than a month after the deed came down, a DNA analysis has confirmed that the gray wolf killed in Utah was indeed Echo, the same wolf that was seen, photographed and tracked near the Grand Canyon last fall, the U.S. Fish and Wildlife Service reported Wednesday.
But environmentalists and ranchers aren't happy with the new federal guidelines.
Northern gray variety hadn't been spotted in Northern Arizona in some 70 years.
Female is likely looking for a mate, according to former federal expert.
Monitoring program used to determine whether UA observatory harms the creatures’ population.
The newspaper got some, but not all the records it requested.
PHOENIX — Known for its small size and auburn color, the cactus ferruginous pygmy owl has environmentalists battling with federal officials over whether it should be protected.
Possible ramifications loom for Rosemont Mine, Fort Huachuca.
Citizen-scientist volunteers are needed for a bat monitoring project.
The northern Mexican gartersnake has joined the ranks of federally protected species.
Border Patrol agents seized a truck designed to look like a U.S. Fish and Wildlife Service vehicle along with a flatbed trailer containing more than 3,200 pounds of marijuana near Douglas on Monday.
The federal government formally announced Friday that it will restart reviews of the proposed Rosemont Mine’s impacts on eight endangered species including the ocelot.
U.S. Rep. Raúl Grijalva, a Tucson Democrat, has asked the U.S. Department of the Interior to intervene in a controversial pipeline project that would carry natural gas from Tucson to Sasabe and into Mexico.
PHOENIX — A Northern Arizona lawmaker wants to put the state in charge of giving out federal dollars to ranchers who lose cattle to wolves.