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»

The Mexican gray wolf population grew by 14 last year, which conservationists are happy about but not so happy they think the animal's long-term prospects are secure. Read more»

After 24 years of waiting, is the Pima pineapple cactus finally having its day in the sun? The Fish and Wildlife Service has released a draft recovery plan for the cactus that has been on the endangered species list since 1993. Read more»

Populations of endangered Mexican gray wolves have reached their highest numbers since reintroduction efforts began nearly 20 years ago, but rather than cheer the success, environmentalists are worried it could backfire on the struggling animals. Read more»

Federal officials denied endangered status to a southern Arizona snail Wednesday after unexpectedly finding far more than were thought to exist, but moved to protect what one advocate called the “very imperiled” Sonoyta mud turtle. Read more»

The U.S. Fish and Wildlife Service proposed a recovery plan Tuesday for the endangered Gila chub that seeks to reduce threats from nonnative species and protect the fish’s degraded habitat in Arizona and New Mexico. Read more»

From the 1970s until 1998, not a single Mexican gray wolf roamed the Southwest. Now there are more 100 of them in Arizona and New Mexico, the U.S. Fish and Wildlife Service announced Friday. Read more»

What appears to be a gray wolf was recently photographed roaming on Forest Service land near the North Rim of the Grand Canyon in what would be the first wolf sighting at the park since the 1940s, the Center for Biological Diversity said Thursday. Read more»

The Zuni bluehead sucker, a once-common fish now only found in the Little Colorado River watershed, has granted been granted endangered species status by the federal government. Read more»

The number of Mexican gray wolves roaming eastern Arizona and western New Mexico increased by eight to 83 wolves in the past year, according to a recent survey by the U.S. Fish and Wildlife Service. Read more»

Nearly 1,200 square miles of Southern Arizona and New Mexico has been labeled as critical habitat for the endangered northern jaguar. Designated by the U.S. Fish and Wildlife service, the area covers mountain ranges throughout Pima, Cochise and Santa Cruz counties as well as ranges in Hidalgo County, N.M. Read more»

A male Mexican gray wolf released into the forest of Eastern Arizona last month has been recaptured after failing to mate with a pack’s alpha female as officials had hoped. Read more»

Federal officials say the release of an adult male Mexican gray wolf will help add genetic diversity to the population of dozens reintroduced to the mountains of eastern Arizona. Environmentalists, however, say it isn't enough to help the species thrive in the state. Read more»

For the second time in as many weeks, a Tucson-based conservation group has sued the federal government over endangered status of the Mexican gray wolf. The Center for Biological Diversity challenged the government's refusal to list the animals as a wolf subspecies. Read more»

A Tucson-based Center for Biological Diversity sued the federal government Wednesday to speed reintroduction of the Mexican gray wolf in Arizona and New Mexico. The conservation group contends that officials have failed to respond to the group’s 2004 petition for the U.S. Fish and Wildlife Service. Read more» 1