Veronique Greenwood

This engraving of a gray squirrel was included in the December 1841 issue of Robert Merry’s Museum. One day in 1856, hundreds of people gathered to gawk at an “unusual visitor” up a tree near New York’s City Hall. The occupant of the tree, according to a contemporary newspaper account, was an escaped pet squirrel, […]

This image from a mouse brain shows the fluid channels (purple) and glia cells (green) flush out the brain’s waste into blood vessels.Jeffrey Iliff1 and Maiken Nedergaard For humans, sleep is an absolute requirement for survival, almost on par with food and water. When we don’t get it, we not only feel terrible, but our […]

Underwater core samples, like these from the coast of England, often contain coded historical messages.Wessex Archaeology via Flickr “Out of sight, out of mind” is the usual attitude about what we flush down the toilet. But in the last century, some chemists have begged to differ: They want to know just where our personal waste […]

Light snow on Mt. Jumbo highlights the different shorelines of prehistoric Lake Missoula.Photo by Don Hyndman, courtesy of the University of Montana You may not realize it, but all around you lie coded messages about the past. The curve of a hill, the shape of a lake, or the almost dinosaurian spine of that ridge […]

Some cancer therapies focus the attention of the immune system like a spotlight over Hollywood.Everett Collection / Shutterstock In early May, 1891, William Coley, a New York surgeon, had before him an interesting case. The patient, a 35-year-old Italian man, had sarcoma tumors in his neck and tonsils, and was slowly starving to death as […]

When talking about our health, we tend to refer breezily to “the immune system,” as if it were as simple as an electric fence keeping out invaders. And there’s certainly an electric fence component: The innate immune response is an ancient, relatively nonspecific kind of defense that triggers inflammation and the deployment of attack cells […]

Earlier this month there was a rare announcement, promoted widely by the press: a new mammal species had been discovered, the first carnivorous mammal identified in the Americas for 35 years. But the olinguito, as the raccoon-like carnivore is now known, was not spotted for its surprising looks or remarkable behaviors that set it apart […]

It’s an odd quirk of the human mind that we tend to think we’re less likely to be affected a particular threat—be it the flu, a car accident, or a flood—than anyone else. Like the fictional town of Lake Wobegon, where all the children are above average, this is a patent impossibility: Everyone can’t be […]

If you’ve ridden in a car piloted by a young or inexperienced driver lately, chances are you’ve had an unwelcome epiphany. When driving your own car every day, navigating familiar streets, the vehicle is an extension of your body and your home, a wee castle on wheels that protects you, obeys you, and gets you […]

Travels Looking at Mt. Fuji, by Kitagawa Utamaro (1753-1806) It doesn’t take advanced technology to prove that we live relatively circumscribed lives. Like tiny planets, we process along a certain orbit, from home, the office, the grocery store, the kids’ school, and back home again, except for the occasional vacation. But thanks to the numerous […]