Between crested cactuses and the "four-arm flexing" cactus, Arizona's native flora can take some unusual shapes. Tucson even has the kissing cactus, which looks like a couple embracing. But the T-Rex ...

Record-high temperatures over the last few years in many parts of the United States have contributed to major stress on plants, animals, and humans. The extreme heat, coupled with a lack of rainfall, ...

Arizona's saguaro cactus has evolved to thrive in the extreme climate of the Sonoran Desert, but after decades of rising heat, even these towering icons are showing signs of stress. "It doesn't take a ...