Since 1966, common raven (Corvus corax; raven) abundance has increased throughout much of this species’ Holarctic distribution, fueled by an ever-expanding supply of anthropogenic resource subsidies ...

Ravens are smart and quick to adapt, and with more resources from urban expansion in the desert their numbers have soared. This imbalance can have a negative impact on other species, especially to the ...

A desert tortoise crawls along the sands of the Desert Tortoise Research Natural Area in California City. (Irfan Khan / Los Angeles Times) Behind the fences surrounding this 40-square-mile outback of ...

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For the desert tortoise, an approximately 1-foot-long reptile found in desert valleys across California and the American Southwest, a full lifespan can be up to 80 years. So while the Mojave National ...

Ravens threaten Mojave Desert tortoises, and solutions call on shifts in human behavior. Ravens threaten Mojave Desert tortoises, and solutions call on shifts in human behavior. While they are one of ...

LAS VEGAS, Nev. (FOX5) - They are a protected under the federal government’s Endangered Species Act. The Desert Tortoise population is making a gradual comeback after it’s population dropped by as ...

Spotting a Mojave Desert tortoise is increasingly difficult in the American Southwest. The tortoises, with their unmistakable domed patterned shells, live in California, parts of Nevada, Arizona and ...

As monsoon rains bring much needed water to Arizona’s deserts, you may notice some of the state’s beloved shell-backed reptiles on the move. State wildlife officials have a message for those who may ...

Eight decades ago, the vast Mojave Desert was home to hundreds of tortoises per square mile, with tortoises inhabiting nearly all areas of the desert below an altitude of 3,000 feet. Today, most ...

Behind the fences surrounding this 40-square-mile outback of cactus and wiry creosote, the largest remaining population of Mojave desert tortoises was soaking up the morning sun and grazing on a mix ...