Environmental groups filed a lawsuit against the federal government over its recent reapproval of the Northern Corridor, continuing a decades-long saga over highway through desert tortoise habitat.

Add Yahoo as a preferred source to see more of our stories on Google. As monsoon rains bring much needed water to Arizona’s deserts, you may notice some of the state’s beloved shell-backed reptiles on ...

Six environmental and conservation groups are challenging the government's decision to move forward with a road project through a section of a conservation area in southwest Utah.

The Biden administration previously blocked the proposed 4.3-mile highway through the Red Cliffs National Conservation Area — ...

A federal judge has prohibited off-road vehicle use in critical habitat for desert tortoises in California’s western Mojave ...

The judge issued an injunction at the request of environmental advocates who had prevailed two years ago on the merits of their lawsuit against the Bureau of Land Management.

The desert tortoise was first listed as threatened in 1990.

Add Yahoo as a preferred source to see more of our stories on Google. A federal judge has partly ruled in favor of environmental groups challenging what one called a vast "spaghetti" network of ...

The animals are also vulnerable to a range of deadly diseases such as upper respiratory illnesses and the shell disease cutaneous dyskeratosis, which softens their shells. Finally, as climate change ...

This paper describes an interdisciplinary study of the habitat requirements of threatened desert tortoises (Gopherus agassizii) on eight 225-ha study plots in a 14 000 ha study area near the southern ...

A federal judge has partly ruled in favor of environmental groups challenging what one called a vast "spaghetti" network of popular off-road vehicle routes in the Mojave Desert, which they charge are ...