The horde of “demonic” sea lions that attacked people off the California coast in recent weeks lashed out because they were sickened by mind-warping toxic algae, scientists have discovered.

One surfer recalled a scary attack that happened to him on March 21 Surfer Rj LaMendola said he was attacked a feral sea lion on March 21 in California. He later learned the animal had been affected by domoic acid,

A toxic algae bloom in southern California has sickened dozens of animals, causing them to have seizures and act erratically.