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The McDowell Sonoran Conservancy now is doing its own study using technology to track Sonoran desert tortoises to answer such questions as how urban expansion affects the species.

 No one likes to get on the scale, but what if there was a reward for looking at the number? That’s the case for Crockett, a 2½-year-old grizzly bear at Bearizona Wildlife Park in Williams just west of Flagstaff. Every week, this 460-pounder willingly steps on a scale the size of a wooden pallet, and…

The Phoenix Climate Action Plan focuses on two critical goals to achieve by 2050: reduce greenhouse gas emissions and build resiliency.

Rosy-faced lovebirds, which appeared in Arizona about 40 years ago, learned how to use human innovation to keep cool when temperatures soar.

The Biden administration last month announced a new effort to protect workers from heat-related illness in the US.

The US Fish and Wildlife Service is designating an Arizona succulent as a “threatened” species under the Endangered Species Act.

There are more caterpillars in Arizona than in years past because of the increased rainfall this monsoon season.