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Surveying archaeologists across the globe reveals deeper and more widespread...
People have been modifying Earth – as in these rice terraces near Pokhara, Nepal – for millennia.Erle C. Ellis, CC BY-NDExamples of how human societies are changing the planet abound – from building...
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Evolution doesn't proceed in a straight line – so why draw it that way?
Evolution has no final endpoint in mind.Uncle Leo/Shutterstock.comA high school marching band’s T-shirt places a horn-playing Homo sapiens at the end of the evolutionary process.Brian Kloppenburg,...
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Stop calling it a choice: Biological factors drive homosexuality
Biological factors shape sexual preference.Rawpixel.com/SHutterstock.comAcross cultures, 2% to 10% of people report having same-sex relations. In the U.S., 1% to 2.2% of women and men, respectively,...
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Complex birdsongs help biologists piece together the evolution of lifelong...
Vocal learning in birds is a lot like how people learn language.Alexandra Giese/Shutterstock.comBonjour! Ni hao! Merhaba! If you move to a new country as an adult, you have to work much harder to get...
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The stress of extreme living underwater for simulating upcoming Moon missions
Csilla Ari D`Agostino and her teammate carry out experiments outside their undersea habitat.NASAAs NASA prepares to return to the Moonin the next couple of years and possibly even establish bases, it...
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How nine days underwater helps scientists understand what life on a Moon base...
Csilla Ari D`Agostino and her teammate carry out experiments outside their undersea habitat.NASAAs NASA prepares to return to the Moonin the next couple of years and possibly even establish bases, it...
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Curious Kids: Why do burps make noise?
Pardon me!Gelpi/Shutterstock.comCurious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.Why does burping...
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I create manipulated images and videos – but quality may not matter much
It can be tricky to make it look like people are doing things they never did.Alexander Sobol/Shutterstock.comLots of people – including Congress– are worried about fake videos and imagery distorting...
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Math skills aren't enough to get through hard decisions – you need...
Numeracy has real implications for your life.Ray Reyes/Unsplash, CC BYAlmost a third of American adults don’t have the math skills necessary to make effective decisions about their health and...
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Indian Moon probe's failure won't stop an Asian space race that threatens...
India's launch vehicle carrying Chandrayaan-2 lifted off from Sriharikota, India, in late July 2019.Indian Space Research Organization via APOn Sept. 7, India’s Chandrayaan-2 lunar mission deployed its...
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How do brains tune in to one neural signal out of billions?
Your brain is conducting multiple orchestras of information at the same time.Enlighted Audio, CC BYThe human brain sends hundreds of billions of neural signals each second. It’s an extraordinarily...
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An artist's journey into the science of sweat
Sweat keeps the human body cool, but why does it stink?AP Photo/Seth WenigDuring steamy days, a body’s physiological response may cause you to wrinkle your nose: the smell of what many people associate...
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A newly designed vaccine may help stamp out remaining polio cases worldwide
The oral polio vaccine is most commonly used in the developing world, despite one big problem.CDC/Alan Janssen, MSPH, CC BYPublic health organizations around the world have been fighting for global...
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The womb isn't sterile – healthy babies are born with bacteria and fungi in...
New research suggests that a newborn is exposed to bacteria and fungi in the womb.stockce/ShutterstockFor the last hundred years, scientists have believed that humans develop in a womb that remains...
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Malicious bots and trolls spread vaccine misinformation – now social media...
At least half of parents of young children report having encountered negative messages about vaccines on social media.Alexander Dummer/Unsplash, CC BYSocial media have become one of the preeminent ways...
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Reimagining eggshells and other everyday items to grow human tissues and organs
Are eggshells the next supermaterial for tissue engineers?icepkman/Shutterstock.comImagine you wanted to grow a blood vessel or kidney or liver outside the body. How would you get all the cells to...
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What is the cryosphere? Hint: It's vital to farming, fishing and skiing
Rivers of melted ice on a Western Greenland ice sheet drain into the ocean beneath the ice.Photo via Caspar Haarløv/APMore than 100 scientists from 30 countries will soon release a special report...
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An origin story for the queer community
Same sex sexual behavior is common to many species and evolved millions of years ago.oneinchpunch/Shutterstock.comI came out to a Christian counselor during a therapy session in 2001 when I was 14. He...
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Curious Kids: What was the first computer?
Clifford Berry stands by the Atanasoff-Berry Computer.Courtesy of Iowa State University Library Special Collections and University Archives, CC BY-NDCurious Kids is a series for children of all ages....
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Climate change created today's large crocodiles
When is bigger better?Willyam Bradberry/Shutterstock.comWhat does the term crocodylian bring to mind? A big reptile with a chomping jaw? Crocodylians are the 27 species of crocodiles, alligators,...
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