Archivo: The Atlantic

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.

Sixty-nine years ago, a new geological era may have begun on Earth.

In a groundbreaking move, the beautiful but uncomfortable documentary forces viewers to acknowledge their own complicity in the decline of nature.

A doomsday fungus known as Bd has condemned more species to extinction than any other pathogen.

A newly discovered giant virus turns its victims to “stone.”

Geo-engineering won’t hurt a bit, at least compared with climate change—and it deserves serious investigation, according to the authors of a recent study.