UCLA researchers are collecting samples near the Boyle Heights warehouse fire to understand what hazardous chemicals may have been released.
The highest increases were seen in mountain lion, coyote and bobcat encounters.
The 20-year-old developed a software app that computes in minutes what would take radiation oncologists hours to figure out manually.
A Catholic school in Pasadena is speaking out against a construction project that has some community members worried about security and traffic hazards.
USC researchers are turning genetically-engineered herpes virus into an effective cancer-fighting tool.
A push to restrict agricultural pesticides appears to be stalling, and a draft of a report obtained by ABC News does not signal any intention to eliminate them.