Their color provides perfect camouflage among the powdery reddish sands of the Namib Desert ... and small spiders. They move surprisingly quickly across the sand, and adhesive pads on their ...

The spider-tailed horned ... way of moving across the sand. Instead of slithering traditionally, this snake uses a sidewinding motion to avoid sinking into the soft desert sands.

As a plane soars over the high desert of southern Peru, the dull pale sameness of the rocks and sand organize and change ... a hummingbird, a spider, a monkey. These are the renowned Nasca lines ...