Researchers in Costa Rica have unearthed fossils from a mastodon and a giant sloth that lived as many as 40,000 years ago, officials announced Friday, calling it the biggest such find here in decades ... .
U.S. stocks steadied after an encouraging update on inflation helped calm a Wall Street that’s been wracked by worries about how AI may upend the business world. The S&P 500 barely budged on Friday, a day after it had tumbled ... .