Researchers have examined the genomes of 240 mammal species. The project reveals when mammals evolved, how some developed the ability to hibernate, and clues that may help explain humans' brains.

The white woman who accused Black teenager Emmett Till of making improper advances before he was lynched in Mississippi in 1955 has died in hospice care in Louisiana, a coroner's report shows.

"Pelé" — the nickname of one of soccer's greatest players — has long been used as a synonym for greatness. Now, a Brazilian dictionary is making that meaning official with a new entry.

The Biden administration's efforts will include new immigration processing centers in Latin America and other measures to discourage illegal border crossings.