 Blue mussels ("Mytulis edulis") contaminated with domoic acid were blamed.Domoic acid has been suggested to have been involved in incident in which took place on June 22, 2006, when a California brown pelican flew through the windshield of a car on the Pacific Coast Highway.On Friday, June 14, 2019, a teenager was attacked and injured by a sea lion that was alleged to be under the influence of domoic acid in Pismo Beach on the Central California coast 

Domoic acid is a structural analog of kainic acid, proline, and endogenous excitatory neurotransmitter glutamate.