How Human Smarts Evolved
By counting the number of neurons in brains, one scientist revolutionized our view of why Homo sapiens and nonhuman primates are so much smarter than other animals.
How Human Smarts Evolved
Human Nature
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Why Eradicating Polio Is More Complicated Than It Seems
Polio retains a foothold in Pakistan—and will likely continue to do so as long as basic health services are neglected.
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Chimpanzees Can’t Tell Us Much About Being Human
Although there is merit in recognizing how we resemble our primate relatives, sometimes we need to understand what sets our species apart.
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Why Envy Might Be Good for Us
Namibian hunter-gatherers deride those who stand out. What does this tell us about why, and how, we care about fairness?
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Who First Buried the Dead?
We have learned a lot by trying to figure out what makes humans unique. Now, it's time to focus on what we have in common with the rest of life.
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When It Comes to Love, Is Three (or More) a Crowd?
Cultures around the world fear unrequited love. One strategy to avoid the pain of rejection might be to spread your love around—but does that work?