A cactus in Colorado is recovering, and the U.S. Fish & Wildlife Service was able to take it off the endangered species list after it was considered a federally threatened species for nearly ...

The Colorado hookless cactus has been removed from the endangered species list, thanks to conservation efforts now at risk of losing federal funding.

The University of Arizona's iconic cactus and sunset logo is returning to the McKale Center floor. Here's how the design came ...