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 ...

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 ...

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 ...

PHILADELPHIA (AP) — Sixteen critically endangered western Santa Cruz tortoises born to some very old parents got a slow walk and the red carpet treatment Wednesday at a Philadelphia Zoo event to show ...

LAS VEGAS (FOX5) — Nevada transportation officials have completed dozens of tunnels and what are called turnarounds, to protect the federally-protected Mojave desert tortoise population, which is ...

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 ...