For decades, many scientists have relied on the "hard steps" model to suggest that intelligent life is rare — the improbable result of a series of unlikely evolutionary leaps. But new research by ...

There’s no one clear measure for animal intelligence so some people disagree which ocean creatures are the cleverest. But, ...

"The Age of Disclosure" director Dan Farah believes "it's only a matter of time" before a sitting president "tells the world we're not alone in the universe." The most significant presidential ...