When we think of lead poisoning, most of us imagine modern human-made pollution, paint, old pipes, or exhaust fumes.

"The pace of change we’re seeing today is unlike anything we know of in the past 66 million years," said ecologist Jack ...

"We have found a habitable environment," said John Grotzinger, project scientist for the Curiosity mission. "The water that was here was so benign and supportive of life that if a ...

Human activity may be triggering the greatest extinction event since the asteroid impact that wiped out the dinosaurs, according to scientists. Their study, based on a review of decades of research on ...

Lindsay Nikole takes us on a bold, hilarious, and chaotic journey through the history of our planet, packed with bizarre ...

Variability in traits and increased individuality in behaviors is something that can evolve in response to selection, ...

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Watch the Earth's tectonic plates grow, shrink, and jostle for position in this new model of the last billion years on the planet.

Controversial evidence hints that complex life might have emerged hundreds of millions of years earlier than previously ...