Once thought resistant to invasion, California's deserts are losing native plants to aggressive weedy species like Saharan mustard. New research shows its spread is disrupting biodiversity and ...

In the past week, there have been more than 50 dead and dying dolphins found along the L.A. County coast. Experts say it's due to a neurotoxin called domoic acid.

An "unprecedented" toxic algae bloom has overrun the coast of Southern California, sickening marine animals and staining the ...

Southern California could be dealing with its worst toxic algae bloom ever. Domoic acid toxicosis associated with a bloom off ...