One Hormone May Be The Answer To Your Dog's 'Leash Aggression'
A study found a relationship between higher levels of the hormone vasopressin and canine aggression.
Rare Arizona Turtle to Join Endangered Species List
US Fish and Wildlife says the reptile is in danger of extinction.
Park Service to Start Culling Grand Canyon Bison Herd
The agency is looking to cut the population in half.
State Park Benefits from Summer Monsoon
Rain adds welcome water to the popular destination.
Summer's Insects Draw Scientists to Southern Arizona
Hot and humid weather is optimal for exploring the outdoors.
Pack Rats for Dinner, Anyone?
New cookbook encourages people to try out the rodent as a food source.
Shelter Numbers Falling for Pima County Animal Care Center
Staffers are encouraged by five-year trend, which may be connected to increasing spaying and neutering.
Pima County Proposes Changes to Chicken Rules
Would allow those on smaller lots to raise chickens.
Marana, Sahuarita Go Their Own Way With Animal Care
Pima Animal Care Center no longer serves towns, which set up their own centers and contracted with the Humane Society.
New Plan for Mexican Gray Wolf Recovery, 35 Years Later
Plan calls for focusing recovery efforts for endangered wolf in Arizona.
Government to Study Predator Program's Danger to Ocelot
Federal study tries to keep predator-prevention program from harming the endangered wild cat.
Reid Park Zoo Closing Early This Week Due To Soaring Temperatures
The zoo wants to focus on caring for the animals throughout high-heat days, to resume normal hours Saturday.
Planting Fish to Kill Mosquitoes: 'This Is Historical'
Endangered fish species going into swimming pool to eat larvae.
Big Role for Little Fish: Mosquito Control in Pima County
Officials hope the native Gila topminnow will be effective replacement for mosquitofish.
Grand Canyon Considers Thinning Bison Herd
Park officials worried about damage done by up to 600 bison in the park.
