What if we’re not Earth’s first big civilization?

How do we really know that there weren’t civilizations on Earth before ours? A new paper addresses this question. Imagine if, many millions of years...
Cities and communities in the US losing 36 million trees a year

Cities and communities in the US losing 36 million trees a year

Scientists with the USDA Forest Service estimate that between 2009 and 2014, tree cover in the Nation's urban/community areas declined by 0.7 percent, which...
Cancer cells can be killed with dinosaur extinction metal

Cancer cells can be killed with dinosaur extinction metal

Cancer cells can be killed with metal from the asteroid that killed the dinosaurs, thanks to new research from University of Warwick UK and...

Large-mammal extinctions linked to ancient humans

Homo sapiens, Neanderthals and other recent human relatives may have begun hunting large mammal species down to size -- by way of extinction --...
How massive collisions delivered metal to early Earth

How massive collisions delivered metal to early Earth

Planetary collisions are at the core of our solar system’s formation. Scientists have long believed that after the Moon’s formation, the early Earth experienced a...

Marine fish won an evolutionary lottery 66 million years ago

Why do our oceans contain such a staggering diversity of fish of so many different sizes, shapes and colors? A UCLA-led team of biologists reports...
Sorry, cat lovers Dogs are smarter

Sorry, cat lovers: Dogs are smarter

Dogs have the biological capability of doing much more complex and flexible things with their lives than cats can Dogs have significantly more neurons in...

Meteorite diamonds tell of a lost planet

EPFL scientists have examined a slice from a meteorite that contains large diamonds formed at high pressure. The study shows that the parent body...
Feathered dinosaurs were even fluffier than we thought

Feathered dinosaurs were even fluffier than we thought

A University of Bristol-led study has revealed new details about dinosaur feathers and enabled scientists to further refine what is potentially the most accurate...

Scientists discover clues to recovery from mass extinction

About 252 million years ago, more than 90 percent of all animal life on Earth went extinct. This event, called the "Permian-Triassic mass extinction,"...

Most Popular