GRAND JUNCTION, Colo. – Two rare cactus plants found at a western Colorado construction site have disappeared, and authorities aren’t sure what happened. The Colorado hookless cactus plants were ...

A rare tree cactus that grew for decades hidden by a tangle of mangrove trees on Florida's Key Largo has lost its battle with rising sea levels and other pressures. It's now considered locally extinct ...

It's found in the U.S. exclusively in the Big Bend region of West Texas.

As out-of-control heat cooks our planet, shattering temperature records for the last 13 consecutive months, it melts polar ice and raises sea levels. Most people are familiar with how this works, but ...

ALBUQUERQUE, N.M. (AP) – The U.S. Fish and Wildlife Service will take a closer look at two rare plants found only in northwestern New Mexico to see if they warrant protection under the federal ...