PHILADELPHIA — University of Pennsylvania researchers have snipped out a single gene in patients’ immune cells to make them partly resistant to infection with HIV, the virus that causes AIDS.
Puppy mills and backyard breeders are operations that emphasize profit above animal welfare. While there is no official definition, in a 1984 legal decision, the term “puppy mill” was defined as “a dog-breeding operation in which the health of the dogs is disregarded in order to maintain a l…
Mountain lions that kill bighorn sheep in the Catalina Mountains will now be tracked and killed by state-sponsored hunters only in a portion of the Catalinas rather than throughout the range, wildlife officials said Friday.
A residence in Patagonia — where bird-watchers have come for decades to spot species such as the sought-after violet-crowned hummingbird in the backyard — will be sold by the owners and managed by the Tucson Audubon Society.
The Arizona Game and Fish Department will get about $10 million over a decade from Rosemont Copper for land, water rights and wildlife projects to compensate for impacts of the proposed Rosemont Mine, the department announced Tuesday.
When I was the director of the U.S. Fish and Wildlife Service, I was fortunate enough to take part in the release of 11 Mexican gray wolves into Arizona’s Apache National Forest in 1998.
ALBUQUERQUE, N.M. — Federal officials cleared the way Friday for a return to domestic horse slaughter, granting a southeastern New Mexico company’s application to convert its cattle facility into a horse processing plant.
ALBUQUERQUE, N.M. — Environmentalists are blasting a federal government decision not to list the Mexican gray wolf as a separate subspecies under the Endangered Species Act.
A colony of black-tailed prairie dogs moved into new digs Monday as part of an Arizona Game and Fish Department program to re-establish the once-native species to its historic range.
WASHINGTON — The 6-day-old giant panda cub that died at the National Zoo had liver abnormalities and fluid in its abdomen, but zoo officials said Monday that they don’t yet know the cause of death.
A bat found outside of the Pima County Juvenile Court last week has tested positive for rabies, officials said.
A Great Dane from Michigan is doggone tall.
PHOENIX — A suburban Phoenix hospital that billed a woman more than $83,000 for administering two doses of scorpion antivenom says it plans to adjust the woman’s bill and review its price for the expensive specialty medication.
Snow, Reid Park Zoo’s 17-year-old polar bear, has died.
Reports of rattlesnake bites this month are the highest in three years, the Arizona Poison and Drug Information Center in Tucson says.
LOS ANGELES — The chimpanzee habitat at the Los Angeles Zoo was open for visitors Wednesday, a day after a baby chimp was killed by an adult male in front of dozens of visitors.
PHOENIX — The death of a Maricopa County infant from whooping cough is prompting health officials to urge residents to make sure they’re vaccinated.
Snake season is upon us — and the biting has begun.
BILLINGS, Mont. — A federal appeals court on Wednesday rejected a lawsuit from conservation groups that want to block wolf hunts that have killed more than 500 of the predators across the Northern Rockies in recent months.
A controlled burn today at the Sweetwater Wetlands is sending a plume of smoke over the city’s west side.