The Center for Biological Diversity and the Maricopa Audubon Society have sued the U.S. Fish and Wildlife Service for violating the Endangered Species Act by failing to protect habitat essential to ...

TUCSON, Ariz.— A federal judge has ordered the Trump administration to make a long-overdue decision on whether to expand critical habitat for Arizona’s highly endangered Mount Graham red squirrels.

TUCSON, Ariz.— The Center for Biological Diversity and Maricopa Audubon notified the U.S. Fish and Wildlife Service today of their intent to sue the agency for its delay in protecting habitat ...

SAFFORD, Ariz. (AP) — The latest survey shows another increase in the population of the endangered Mount Graham red squirrel in the Pinaleno Mountains of southeastern Arizona, according to authorities ...

An endemic subspecies of squirrel that has been in peril for more than half a century is showing signs of population growth in its southeastern Arizona habitat, likely due to a new survey method. The ...

Mount Graham red squirrels live in a high-altitude part of the Pinaleño Mountains. The oft-litigated red squirrels named after Arizona’s Mount Graham reentered federal court Tuesday as ...

A growing woodland is bringing new hope for the future for the Isle of Wight's red squirrels.

The Mount Graham red squirrel population declined slightly in the past year despite a new counting method that more accurately locates the population, state officials said. The 2023 survey of the ...

The Fish and Wildlife Service has until Jan. 30, 2027, to decide on a petition to expand critical habitat filed in 2017. A federal judge says the Fish and Wildlife Service has “unreasonably delayed” ...

Squirrels are found nearly everywhere, and their apparently playful demeanor makes it easy not to notice that their lives can be difficult. That rambunctious behavior we observe both in city parks and ...