Hundreds of Galaxies Were Found Hiding Behind Our Milky Way
The objects may help explain why our galaxy and its neighbors are hurtling towards a seemingly blank zone called the Great Attractor
Does Having a C-Section Alter Baby's First Microbiome?
A study of cesarean babies swabbed with birth canal fluids suggests that some newborns may be missing out on helpful microbes
An Ancient, Brutal Massacre May Be the Earliest Evidence of War
Even nomadic hunter-gatherers engaged in deliberate mass killings 10,000 years ago
Social Contact Helps Beneficial Gut Bacteria Spread
A study of chimp poop suggests that social animals share a collective microbiome that might help regulate health
The Iceman's Stomach Bugs Offer Clues to Ancient Human Migration
DNA analysis of the mummy's pathogens may reveal when and how Ötzi's people came to the Italian Alps
Most Oil Needs to Pass Through at Least One of These Tiny Spots
Tankers carry millions of barrels a day through tiny chokepoints, which put the surrounding areas at risk of environmental problems
Your Hair Mites Are So Loyal Their DNA Reflects Your Ancestry
Mite DNA could hold clues to ancient human migrations and future skin health
Your Gut Bacteria May Be Controlling Your Appetite
The microbes in your stomach seem to hijack a hormone system that signals the brain to stop eating
Your Thanksgiving Turkey Is a Quintessentially American Bird: An Immigrant
The turkeys common on U.S. tables descended from a Mexican species and were originally bred for Maya rituals
Talking Is the Latest Tool for Battling Seasonal Depression
A large-scale study suggests that talk therapy may have longer-lasting benefits than light boxes for treating wintertime blues
Strange Foods of the Future: The Planet Can Stomach Them, But Can You?
These unusual delicacies could become the staple foods of the future
Why Do Humans Have Allergies? Parasite Infections May Be the Trigger
Protein analysis suggests that antibodies that evolved to fight parasites might be turning their focus to otherwise harmless agents
Plague Was Infecting Humans 3,300 Years Earlier Than Thought
DNA from Bronze Age victims helped pinpoint mutations that allowed the disease to go from localized illness to deadly pandemic
Back to Africa: Ancient Human Genome Reveals Widespread Eurasian Mix
Genes from a 4,500-year-old skeleton from Ethiopia show how migrations shaped modern populations
What's Beautiful? It Depends on What Your Eyes Have Already Beheld
Opinions about beauty may be shaped just as much by past social interactions as by our genes
Americans Are Eating Later, and That May Contribute to Weight Troubles
Our bodies didn't evolve to handle midnight pizzas
You Produce a Microbial Cloud That Can Act Like an Invisible Fingerprint
The unique cloud follows you wherever you go—and could ID you in a crowd
What Makes a Fossil a Member of the Human Family Tree?
The surprising new species Homo naledi raises more questions than answers—for now
Winning Really Does Taste Sweet, Because Emotions Change Taste Perception
A study of hockey fans sampling ice cream may offer clues to the origins of emotional eating disorders
Scientists Replicated 100 Psychology Studies, and Fewer Than Half Got the Same Results
The massive project shows that reproducibility problems plague even top scientific journals
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