Archivo: The Atlantic

Physicians once advised menstruating women against mental exertion, fearing it would ravage their health.

A new hypothesis suggests that their vaunted intelligence and short-lived, solitary nature are all linked to a fourth trait.

NASA will conduct a delicate rescue mission to free a probe trapped just inches below the Red Planet’s surface.

As if saber-toothed cats weren’t enough.

The night sky is already dotted with shiny satellites and other artificial lights. One day, maybe that’s all there will be.

Chimpanzees, birds, and even rats have shown signs of reviewing their own past to prepare for the future.

The first ever documented in another species of mammal, these dialects may have been a side effect of the seals’ encounters with humans.

Spoiler: Migration is hard.

The spider Hyptiotes reinvented the concept of the web, building an extraordinary, spring-loaded trap.

These strange, barren halos are thought to be the work of fearful fish—but the reality is far more complicated.