The western snowy plover is nesting along the Los Angeles area coast for the first time in nearly seven decades, federal officials said.
Environmental and animal-welfare groups have filed a lawsuit claiming the U.S. government is violating the Endangered Species Act by allowing the use of two predator-killing poisons.
The thorny skate's population may have declined, but not by enough to justify listing it under the Endangered Species Act, the federal government has ruled.
There are now more Mexican gray wolves roaming the American Southwest than at any time since the federal government began trying to reintroduce the predators nearly two decades ago.
A battle over how to save endangered wolves in the Southwest moves to a federal appeals court Wednesday as judges hear arguments on whether states can block the federal government from reintroducing wildlife within their ...
The rusty patched bumblebee has become the first bee species in the continental U.S. to be declared endangered after suffering a dramatic population decline over the past 20 years, federal officials said Tuesday.
Federal authorities on Friday added seven yellow-faced bee species, Hawaii's only native bees, for protection under the Endangered Species Act, a first for any bees in the United States.
Federal officials on Tuesday rejected greater protections for four species including the rabbit-like American pika, which researchers warn is disappearing from areas of the Western U.S. as climate change alters its mountain ...
Federal wildlife officials recommended Friday that three fox subspecies native to California's Channel Islands be removed from the endangered species, saying their populations have made an historic recovery.
The greater sage grouse, a ground-dwelling bird whose vast range spans 11 Western states, does not need federal protections, the Interior Department said Tuesday, following a costly effort to reverse the species' decline ...