The desert mule deer is a common sight in west Texas, but wildlife biologists in the area came across an extremely uncommon ...

While its venom is toxic, the horned adder is generally not aggressive and bites are rare. The desert sidewinding horned viper (Crotalus cerastes), also known as the sidewinder, is famous for its ...

LAS VEGAS— The Center for Biological Diversity today petitioned the U.S. Fish and Wildlife Service to protect a rare desert wildflower under the Endangered Species Act. The white-margined penstemon ...