Delta Air Lines is rebranding its ticket categories and nixing basic economy. The affordable tickets have been renamed Delta Main Basic. Delta says the changes will provide more choice and clarity ...

Delta Air Lines is renaming its fare classes, including folding Basic Economy into a new "Delta Main" category. Delta Main will have three levels: Basic, Classic, and Extra, offering varying perks ...

The team analyzed global elevation distribution data—both historical and modern—for 440 animal species and 1,629 plant species across 23 mountain regions, totaling 8,800 data points.

The Delta tunnel project is a plan that's drawing bipartisan backlash. It would take water from the Sacramento-San Joaquin River Delta and move it to Southern California. Gov. Gavin Newsom is ...

Take away these natural resources, and these icons of America will go extinct. For 50 years, the Endangered Species Act has provided bedrock legal protection for nature’s most vulnerable ...

More than 900 known species are already extinct to date, while at least 28,500 others are listed as endangered or critically endangered by the IUCN, the global wildlife conservation authority.

Fifteen years ago, Delta Air Lines had two products: first class and coach. Now flyers can choose from seven to nine, depending on their flight. It’s all part of Delta’s long-term strategy to ...

Get Instant Summarized Text (Gist) A new species of poison dart frog, Ranitomeya aetherea, has been identified in a remote area of the Brazilian Amazon. Characterized by sky-blue lines, copper ...

The sole purpose of the expedition was to cull suckermouth catfish, one among a growing number of invasive species that have in recent decades dominated freshwater habitats across Southeast Asia.

Researcher Darren Pietersen holds a Blyde Rondavel Flat Gecko, a type of lizard that previously hadn't been recorded since it was discovered in 1991, on a research trip to the Blyde River Canyon ...

A new species of crayfish found in Washington and Canada has been identified, researchers said. Getty Images/iStockphoto A graduate student came across a reddish-brown creature with claws that was ...

Now, Andrews is thriving as one of only a handful of patients to undergo an experimental cross-species transplant of a kidney from a genetically modified pig. 4️⃣ Poems & porpoises ...