Earth's creatures come in all sizes, yet they (and we) all sprang from the same single-celled organisms that first populated the planet. So how on Earth did life go from bacteria to the blue whale?

"It happened primarily in two great leaps, and each time, the maximum size of life jumped up by a factor of about a million," said Jonathan Payne, assistant professor of geological and environmental science at Stanford.

Were those of us who believed an Obama administration would be more friendly to science right?

A research team has discovered the earliest evidence of our cave-dwelling human ancestors at the Wonderwerk Cave in South Africa.

Researchers have provided some clues to one of biology's most complex questions: how ancient organic molecules came together to form the basis of life.

Those ferocious Hollywood meat-eating dinosaurs you’re used to seeing in the movies very possibly had a much softer side: the males might even have been sort of prehistoric babysitters, according to a far-flung study conducted by a Texas A&M University researcher.

All spiritual experiences are based in the brain. That statement is truer than ever before, according to a University of Missouri neuropsychologist.

A University of Minnesota researcher has made an important contribution toward solving one of the greatest paleoanthropological mysteries in recent history -- that fossilized skeletons resembling a mythical "hobbit" creature represent an entirely new species in humanity's evolutionary chain.

For every rock star who hits it big, there are thousands of artists who never make it out of their own back yards. Before Madonna was “Madonna,” she was a local success in New York clubs.

If you're happy and you know it, thank your friends—and their friends. And while you're at it, their friends' friends.

Middle-aged men want younger women, often touting their intelligence and their high income.