The Karoo desert is a biodiversity hotspot spanning South Africa and Namibia, and contains many rare succulent plants. This endangered flora is being poached to meet international demand. The illegal ...

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 ...

A Texas hiker who stumbles on a once-in-a-lifetime rare cactus in the desert is not just finding a botanical curiosity, but stepping into the middle of a thriving criminal market. In a region where ...