Join The Scientist on March 19 to discuss Lulu Miller’s book about a determined taxonomist whose life and work constitute a fable illustrating the hazards of categorization.

The Sloan Kettering researcher used mutagenic screening to probe genes and molecular pathways, including Toll and Hedgehog, essential to development in fruit flies and mice.

The biologist at the University of Sunshine Coast in Australia wants to understand why some animal species adapt well to urbanization, while others fall flat.

One way to investigate the record-setting deaths of the marine mammals is to perform autopsies on them, but researchers are also taking a close look at living whales for clues to what could be killing them.

Enhancers, short regions of DNA that direct gene expression, of species separated by 700 million years of evolution worked interchangeably, according to a new study.

As some conservationists and researchers begin to return large carnivores to areas where they once roamed, scientists intensify efforts to study the ecological roles of predators.

A global decline of large carnivores has motivated scientists to understand the animals’ ecological roles, and consider whether reintroducing them can help restore ecosystems.

Long-lived species decrease their reproduction more than short-lived species in response to lower-than-normal precipitation, and thereby gain a survival advantage, a study finds.

In South Africa, the composition of droppings varies by species’ body sizes, and which animals are found where depends on vegetation density.

Knock-on effects of melting sea ice in the Arctic may be to blame for a spate of gray whale deaths along their migration route from Mexico to Alaska.

For the past two years, the charismatic marine mammals have washed up on Pacific shores in record numbers. Scientists investigating the strandings suspect warming waters and melting sea ice are partly to blame.

The release of gray wolves in Yellowstone decades ago still stands as one of the few examples of a predator reintroduction, and the lessons learned continue to be debated. New projects aim to do it again.

The University of Washington parasite ecologist aims to understand how humans have changed the diversity and abundance of the enigmatic and misunderstood organisms.

Mace led the work to determine the criteria for the IUCN’s Red List.

As shelter-in-place orders quieted the city of San Francisco, its sparrow population developed softer, sexier songs.

Flames and smoke have killed dozens of people over the past month and burned hundreds of thousands of acres, causing massive disruptions.

Understanding this complex and still largely enigmatic process will pave the way for researchers to control the development of new morphologies.

Understanding biology’s software—the rules that enable great plasticity in how cell collectives generate reliable anatomies—is key to advancing tissue engineering and regenerative medicine.

Data on vertebrate species that have become, or are likely to become, extinct reveal plant eaters are most under threat.