Trench WarfareThe feds want to define “waters of the United States” scientifically. Farmers are freaked out.
Can Blue Whales Recover?Populations off California may have reached historic levels, but that is not the case everywhere.
Why Do American Alligators Attack People, but American Crocodiles Don’t?A strange Florida case, explained.
Fifty Years of WildernessThe Wilderness Act’s most practical, important protection is its prohibition on roads.
What Do Talking Apes Really Tell Us?The strange, disturbing world of Koko the gorilla and Kanzi the bonobo.
The Best (and Worst) Ways to Avoid Lightning StrikesLying on the ground? Seeking shelter in a car? What about the “30/30” rule?
The Power of TreesThe U.S. Forest Service wants to prove the immediate, measurable effects of tree loss on human health.
Why Do American Schizophrenics Hear Threatening Voices? Ghanaian and Indian schizophrenics often don't.
What’s Heavier: 1 Pound of Feathers or 1 Pound of Lead?A classic gotcha riddle may be more complicated than it seems.
Slate Voice: “Does This Make Me Sound Insecure?”Listen to Katy Waldman read her most popular article from the month of July.
Why Is So Much Honey Clover Honey?Honeybees pollinate almonds and fruit trees, but we don’t have much almond honey.
The Science of TruthinessConservative beliefs make a lot more sense when you’re not paying attention.
“I Sensed That Many Had Never Told Their Story to an Outsider”The story behind “What Do Talking Apes Really Tell Us.”
A Memorable FlightHow people with and without post-traumatic stress disorder recall 25 minutes of terror.
White People Are Fine With Laws That Harm BlacksThe futility of fighting criminal justice racism with statistics.
Why Do Scientists Commit Fraud?The latest stem cell research misconduct investigation ends in tragedy.
Killing in the Name of CleanlinessThe shocking stupidity and brutality of Nazi doctors’ response to typhus.
Why Psychologists’ Food Fight Matters“Important findings” haven’t been replicated, and science may have to change its ways.
The Truth About Elevator DeathsThey are vanishingly rare—but that doesn’t stop people from debating the best way to survive a sudden fall.