A rare northern jaguar known for roaming Arizona's Santa Rita Mountains was recently observed central Sonora, Mexico, evidence of continued cross-border migration for the species. Read more»

Jaguars are the only species of big cat found on the American continent, and though local populations across the continent are decreasing at alarming rates, some experts think it’s possible jaguars could return to the Southwest U.S. Read more»

Federal regulators on Friday rejected a mining company’s request to reduce critical habitat for endangered jaguars in the Santa Rita Mountains on land that overlaps the footprint of the proposed Rosemont Copper Mine. Read more»

At the urging of U.S. Rep. Raúl Grijalva, the GAO is launching a review the impact of border wall construction under the Trump administration. DHS "blatantly abused its sweeping and potentially unconstitutional authority" to waive environmental laws, he said. Read more»

The Biden administration – which paused border wall construction in January – faces a logistical, ethical and political quandary in determining the best way to proceed with the half-finished project that’s has introduced more problems than it fixed and is part of construction ordered by then-President Donald Trump. Read more»

When Ganesh Marin was studying ecosystems along the border U.S.-Mexico this year, the University of Arizona Ph.D. student wasn’t expecting to see a young jaguar sauntering in his video feed in mid-March. Read more»

After a years-long battle to protect the designation of stretches of the southwest as a protected habitat for the jaguar, a federal judge has ruled that the New Mexico land should no longer be protected for the largest New World cat. Read more»

President Joe Biden made good on a campaign promise within hours of his swearing-in this week, ordering a pause in construction of the border wall and a plan for how to redirect wall funding. Opponents of the wall hailed the move but say more action is needed. Read more»

Three environmental groups challenging the border wall between the United States and Mexico argued Tuesday in a federal complaint that the plan will completely kill off a population of jaguar. Read more»

Wildlife advocates say animals like the jaguar are at risk if President Donald Trump builds his planned border wall. But jaguars and their advocates may have an unlikely ally – the technology used in driverless cars. Read more»

President Trump wants to stop illegal immigration with a "big beautiful" wall along the U.S.-Mexico border, but experts agree it would harm the ecology of one of the most biodiverse regions of North America. Read more»

Four Arizona environmental groups filed a federal lawsuit, seeking to overturn a decision by the Forest Service allowing the controversial Rosemont open-pit copper mine to move closer to development south of Tucson. Read more»

Tucson's Center for Biological Diversity filed suit Monday, charging that the Trump administration violated federal rules when considering the environmental effects of an open-pit copper mine in the Santa Rita Mountains about 30 miles southeast of Tucson. Read more»

Video of a endangered wild jaguar released Thursday shows a big cat that was first photographed by a trail camera late last year. Dubbed "Sombra" by Tucson schoolkids, the jaguar was captured on tape in the Chiricahua Mountains. Later in the day, officials announced the cat is a male. Read more»

The controversial Rosemont Copper Mine is one step closer to development after the Forest Service signed off on one of two federal permits needed to begin operating the open-pit copper mine in the Santa Rita Mountains about 30 miles southeast of Tucson. Read more» 1