Tag Archives: biology

The original version of this story appeared in Quanta Magazine. For a molecule of RNA, the world is a dangerous place. Unlike DNA, which can persist for millions of years in its remarkably stable, double-stranded form, RNA isn’t built to last—not even within the cell that made it. Unless it’s …

By the time Louise Tilley got to the blood sample, it had already been puzzling scientists for more than 30 years. In 1972, a pregnant woman had her blood taken, and doctors noticed that her red blood cells seemed to lack a surface marker, known as an antigen, that everyone …

The original version of this story appeared in Quanta Magazine. Once upon a time, long ago, the world was encased in ice. That’s the tale told by sedimentary rock in the tropics, many geologists believe. Hundreds of millions of years ago, glaciers and sea ice covered the globe. The most …

In 1997, a French woman named Jeanne Calment died at the age of 122. She was the world’s oldest verified person, according to the Gerontology Research Group. Her daily habits included drinking a glass of port wine and smoking a cigarette after meals (she also ate 2.5 pounds of chocolate …

It’s hard to miss the headliners at Kew Gardens. The botanical collection in London is home to towering redwoods and giant Amazonian water lilies capable of holding up a small child. Each spring, its huge greenhouses pop with the Technicolor displays of multiple orchid species. But for the really good …

Surgeons in New York have removed a pig kidney less than two months after transplanting it into Lisa Pisano, a 54-year-old woman with kidney failure who also needed a mechanical heart pump. The team behind the transplant says there were problems with the heart pump, not the pig kidney, and …

This story originally appeared on WIRED en Español and has been translated from Spanish. Brown howler monkeys are dropping dead by the dozens in southern Mexico. Between May 4 and May 21, at least 138 died, with deaths occurring in places where temperatures have been abnormally high, exceeding 43 degrees …

The original version of this story appeared in Quanta Magazine. Ever since viruses came to light in the late 1800s, scientists have set them apart from the rest of life. Viruses were far smaller than cells, and inside their protein shells they carried little more than genes. They could not …

When donated blood is in low supply, platelets are even scarcer. These cell fragments, which are essential for blood clotting, have a short shelf life. Whereas whole blood can be refrigerated for up to a month, platelets last for just a week at most. “Even if you have a ton …

Fungi are an indispensable part of your microbiome, keeping the body’s host of microorganisms healthy as part of a system of checks and balances. But when you’re hit by an infection, fungi can be thrown out of equilibrium with other organisms inside you, leading to a more severe infection and …