A new study shows cultural evolution helped humans expand across Earth far faster than genetic change alone could achieve.

Dear EarthTalk: Are any plants and animals evolving backward by incorporating traits that they lost long ago? -- Joseph R., ...

Forget Survival Of The Fittest. Humans Conquered Our Planet By Sharing Ideas. In A Nutshell Humans spread across nearly every habitat on Earth in around 300,000 years, a feat that biology alone would ...

My colleague and I have published a new study of cactus flowers which may help explain the conundrum. For more than a century ...

We have only one example of biology forming in the universe – life on Earth. But what if life can form in other ways? How do you look for alien life when you don’t know what alien life might look like ...

Human evolution is a story writ slow. It’s been about 3.8 billion years since life on Earth emerged and steadily began to spread its reach from the tidal pools to the oceans to ...

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Climate change. Habitat loss. The increasing spread of invasive species. These are just a few impacts of human activity — and to the animals on the front lines, even the slightest shift can feel like ...

Earth's surface is the living skin of our planet—it connects the physical, chemical and biological systems. Over geological time, this surface evolves. Rivers fragment the landscape into an ...

Astrophysicists have done a bit of crime scene investigation on what’s almost a reverse murder mystery. They’ve traced radioactive elements on the seafloor back to the cosmic explosions they might ...

More than 2.3 million ancient genetic switches discovered in plants reveal how key growth controls endured 300 million years ...

Chris Impey receives funding from the National Science Foundation and the Howard Hughes Medical Institute. We have only one example of biology forming in the universe – life on Earth. But what if life ...