PHOENIX – “Everything in the Sonoran Desert either sticks, stings, bites or eats meat. There are quite a few things you don’t want to touch, and in the dark it’s harder to discern between safe and ...

TUCSON, Ariz. - Federal officials have concluded that Sonoran desert tortoises native to Arizona have a relatively stable population that doesn’t need protection from environmental threats, but ...

LEE FRIEDLANDER'S desert is the desert of danger, the one you'd see if you were in trouble. Say you were stuck out in the Sonoran wilderness at high noon in summer, lost, thirsty and tired. You wouldn ...

PHOENIX — Marilyn Hanson takes a 3-mile walk every day along a river wash and bike path northwest of Tucson. While she walks, she listens for birds and surveys the areas along the path for invasive ...

PHOENIX — Poison experts warn the Sonoran Desert toads that come out during the rain in Arizona’s monsoon season can be dangerous for humans and pets. The toads produce a toxin that’s released through ...

How much does a fully hydrated saguaro weigh? After a good amount of monsoon storms, a fully hydrated saguaro can weigh anywhere from 3,200-4,800 pounds. -Arizona Sonoran Desert Museum How many ...

Clouds hang low overhead. Humidity clings to market goers as fans wave cool, intermittent respite. Along a humming sidewalk at the Mercado San Agustín, a 41-year-old vender with a long braid hanging ...

PHOENIX (AP) - Wanted: Forever homes for more than 100 Sonoran desert tortoises that can grow to 14 inches and live as long as 100 years. Due primarily to illegal breeding, Arizona Game and Fish ...

I love obscure books on cactus by really knowledgeable authors. One penned in 1994 by Park S. Nobel, Professor of Biology at UCLA calls me back time and again. What I learned the other day from ...