Magazine

Story

7.13.2016

Los Angeles is a metropolitan den for mountain lions

David Colgan

Mountain lions are rarely seen, but they occasionally prowl near human habitats, according to a study by UCLA and the National Park Service published today in PLOS One. The research, conducted in and around the Santa Monica Mountains, is the first of its kind to investigate where mountain lions like to hunt in highly urbanized…


Voices

4.19.2016

Earth Day: then and now

Peter Kareiva

The first Earth Day was covered for ten hours by The Today Show in 1970—a time when there was no cable television and network coverage meant a lot more than it does now. Nobody counted the exact numbers, but it is estimated there were at least 35,000 teach-ins around the United States. Congress took April…


Story

4.13.2016

Drought makes life hard for Los Angeles newts

David Colgan

In the southern part of the state, the California newt—Taricha torosa—has been showing up at breeding grounds nearly 20 percent underweight, on average. The drastic change has evolutionary biologist Gary Bucciarelli concerned. “They look really emaciated,” said Bucciarelli, a postdoctoral researcher with UCLA Institute of the Environment and Sustainability. “You can see the vertebrae and…


Voices

3.29.2016

Are we leaving nature behind?

Peter Kareiva

The crisis is taught in classrooms with phrases such as “species are being lost at one hundred times the background rate.” But concepts like background rate—the rate at which species were lost prior to humans—are not easily visualized. Pictures of recently extinct species might prompt a sense of loss, but that raises questions: What photographs…