Scientists say they have at last solved the mystery of what killed more than 5 billion sea stars off the Pacific coast of North America in ...

In the embrace of a cheerfully chittering spider monkey named Louie, an Army veteran who grappled for decades with post-traumatic stress disorder says he ...

The vast majority of U.S. adults are at least somewhat stressed about the cost of groceries, a new poll finds, as prices continue to rise and ...