The decision to cut more than 1,300 old-growth trees last summer in an Arizona forest has been criticized for breaking trust with the thinning project's backers.

The vaquita marina, or little sea cow, is the most endangered marine mammal in the world, with fewer than 30 left in Mexico’s Sea of Cortez. At this critical moment for the nearly-extinct porpoise, activists, scientists and legal fishermen are trying to do everything they can to protect the small porpoise.

The recent closure of two lanes at one of Nogales’ ports of entry further slowed notoriously long holiday border crossing times.

Navajo voters who couldn’t vote on election day due to a ballot shortage have until Nov. 21 to cast new ballots. The tribe was choosing a new president and several council delegates.

The federal government has awarded a $174 million contract to a Montana company to replace 14 miles of U.S.-Mexico border wall near Yuma.

Defense Secretary James Mattis visited the soldiers deployed to the Texas border Wednesday as part of what he called a sincere effort to lock down the border in anticipation of the arriving caravan of migrants now arriving in Tijuana.

Federal officials had contradicted each other last week on whether the so-called asylum ban applies to children traveling without a parent or guardian, but they’re now on the same page.

Teacher Angela Patton gave the prompt for a writing assignment to a combined class of fifth and sixth graders: imagine finding a cave inside a tree and detail what’s inside.

The U.S. Department of Labor has proposed a change in the way employers try to recruit U.S. workers, before they hire foreign guest labor through the H-2A and H-2B visa programs.