The International Union for Conservation of Nature (IUCN) has announced that several species of animals and plants have now ...

The small fish are expected to thrive inside Biosphere 2 and establish a new, local population, according to researchers.

The Center for Biological Diversity has asked the U.S. Fish and Wildlife Service to add the Bendire's thrasher to the endangered species list. The thrasher is a rare desert songbird whose habitat is ...

PHOENIX— Federal land managers have allowed years of extensive damage from livestock grazing to streamside habitats vital for endangered plants and animals in Arizona and New Mexico, according to a ...

One of the rarest species on Earth, the Devils Hole pupfish, came close to extinction in recent months, thanks to an earthquake 500 miles from their deep desert cave. Now, worried scientists and ...

By looking the other way and being beholden to ranchers, our federal land managers at the Forest Service are abdicating their responsibilities and condemning endangered animals to extinction.” Field ...

A Maricopa County judge ruled yesterday that more than 50 animals seized from a Rio Verde property last month be returned to their owner, Benjamin Alvarez. The decision followed a full day of ...