Why Indiana chose the northern cardinal in 1933, reflecting everyday wildlife, changing landscapes, and a search for hopeful ...

New research suggests ancient islanders may have migrated across the Pacific in response to shifting rainfall. As the west grew drier and the east wetter, people may have followed water to survive.

Pope Leo XIV will soon travel to Spain and to the Canary Islands, a major migrant entry point into Europe, a Spanish cardinal ...

It was the type of standoff that has become routine since the Trump administration launched its immigration crackdown in June: Unmarked federal vehicles, sirens blaring, move toward a maroon SUV ...

In the rugged terrain where Mexico and the United States meet, a border wall is just the latest obstacle fragmenting habitats ...