Urban Ecology |

P-32: Mountain lion who crossed the 101 killed crossing I-5

National Park Service
| P-32, the only male puma known to successfully leave the Santa Monica Mountains and enter a larger forested area to the north was killed by a vehicle Monday morning.

China's ozone-forming pollutants drift over California, study shows

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The US made huge leaps in cutting ozone-forming pollutants, but the ozone in the atmosphere did not drop because of a combination of pollutants drifting from China plus a natural uptick in ozone

Reporter's notebook: To catch a coyote in the city

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Scientists have begun monitoring coyotes in Los Angeles's highly developed areas using GPS collars. But first they have to catch a coyote.

Slideshow

Group to plant unapproved sycamores in tree-poor Lennox

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Los Angeles county says the trees aren't right for Lennox. The environmental group doing the plantings says the area needs shade and clean air.

Document

King of sea lions spotted in Southern California waters

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You probably won't mistake the Steller sea lion. It's enormous — up to three times the size of the common California sea lion.

Swallows not returning to San Juan Capistrano mission

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A researcher working with the mission is proposing a new plan to build a wall of fake plaster nests in hopes of luring the famous birds back.

Slideshow

Green sea turtles find unlikely home in San Gabriel River

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Green sea turtles typically live in warm water, but a group appears to be thriving in an urban river. Outflows from nearby power plants seem to be helping them.

Video

Green alleys: Pilot project to collect rainwater, beautify neighborhoods

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Two alleys in South L.A. will soon get a makeover. The asphalt will be replaced with a surface that filters and collects water. Lighting, trees and artwork will transform the alleys into semi-parks.

Slideshow