Conservation groups say the proposed Arizona routes for an Interstate 11 project failed to consider habitat for imperiled desert species.

In response to a lawsuit from conservation groups, the Federal Highway Administration and Arizona Department of ...

Nature lovers flock to Joshua Tree National Park. Although the rugged desert is harsh, the animals have adapted. Here are the ones to avoid.

Southwestern desert birds live on the edge but have adapted over time. Now the evidence suggests they are struggling to adapt ...

The national tree of Yemen is so called because of the deep red resin in its bark which appears to bleed when cut. Yet it is ...

Botanist Gustaf Starck rallied people passionate about preserving desert plants with a sign outside his Scottsdale ranch.

The popular Conophytum, Lithops and Tylecodon are part of the group of rare and aesthetically unique succulents which are now ...