The leg of this purple ochre sea star in Oregon is disintegrating, as it dies from sea star wasting syndrome. Photo by Elizabeth Cerny-Chipman, courtesy of Oregon State University.

The Long Quest to Uncover a Sea Star Killing Bacteria

Scientists say they’ve found the cause of a marine epidemic more than ten years after it started. What took so long?
Western meadowlark singing on a fence post at sunrise in Fort Niobrara National Wildlife Refuge near Valentine, Nebraska.

Birding by Ear

How to learn the songs of nature’s symphony with some simple techniques.
Blue-stained serpentine Neotyphodium coenophialum mycelia inhabiting the intercellular spaces of tall fescue leaf sheath tissue. Magnified 400x.

Better Farming Through Endophytes

Scientists look to “probiotics” for crops as a new green revolution in agriculture.
Mammal bones protrude from pit 91 at the La Brea Tar Pits on August 17, 2023 in Los Angeles, California.

La Brea and Beyond

Pits and seeps full of tar and asphalt offer new insights into old ecosystems and cultures.
Maxine Singer, Norton Zindler, Sydney Brenner and Paul Berg at the Asilomar Conference, February 1975

The Legacy of Asilomar

The 1975 scientific conference laid the ground rules governing the next half century (and counting) of biological research and public scrutiny of it.
The Fire of Rome, 18 July 64 AD by Hubert Robert , 1785

A History of Fire

It’s only as we brought fire under better control that we stopped thinking so much about it—and, with climate change, that may be shifting again.
Poster for the film The Deadly Mantis, 1957

The War on Bugs

In the 1950s, supersized insects were the villains in a rash of big-screen horror movies. What did those monstrous roaches represent, and how were they vanquished?
A photograph from the Mars Perseverance rover, 2021

NASA’s Search for Life on Mars

It’s a rocky road for its rovers, a long slog for scientists—and back on Earth, a battle of the budget.
Peppered moth (Biston betularia)

Humans As Drivers of Evolution

“Anthropogenic,” meaning of human causes, is generally used to refer to climate change. But it also covers the powerful evolutionary force that is humanity.
An image generated using Adobe Firefly

AI and the Creative Process: Part One

How does generative artificial intelligence upend conventional understandings of who is and what makes for a true artist?