The crosshatch symbol was made with a red ochre utensil more than 70,000 years ago
While researchers used to rely on interviews and experiments, raw video reveals subtle, previously hidden reactions
There might be a tradeoff between how strong men look and sperm count
The country consumes 28 percent of the world's meat—twice as much as the United States. And that figure is only set to increase.
The publication gave rise to a new community of environmental thinkers, where hippies and technophiles found common ground
Rodents suffer from the same sunk cost fallacy that makes it so hard for humans to call it quits
These transformative practices—and the cooperation they require—are a cornerstone of societies the world over
From diet to evolution, prehistoric chompers tell archaeologists a surprising amount about our ancestors
The skeletons of deer killed 120,000 years ago offer more evidence of cooperative behavior and risk-taking among our hominin relatives
One of the first digital shooting games reflected a fear of, well, invaders—a fear that still resonates today
Understanding their courteous exchanges—from frog croaks to elephant rumbles—could shed light on the origins of human conversation
Virtual simulations attempt to show how faith influences human behavior in the face of terror
Protecting burial grounds, temples and churchyards can bolster wildlife and forests
A grassroots guard in Alaska works to keep people safe from bears, while also keeping bears safe from people
In one of his final on-camera appearances, iconic physicist Stephen Hawking issued a warning to humanity about the existential threats we face
Scientists follow and record chimps in the wild to find out if they talk to each other—and to fill in details about how and why language evolved in humans
Even the most remarkable fossil find means nothing if scientists aren’t ready to see it for what it is
The untold story of a failed Russian geoengineering scheme, panic in the Pentagon, and a Nixon-era effort to study global cooling
From the Beyonce fly to the David Attenborough possum, the names we bestow on animals have real conservation impacts
For two years, researchers from the Smithsonian traveled the country explaining the science of our shared origins
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