Then, a man in his 30s decapitated a dead sea lion, put the animal’s head in a plastic bag and rode away on an e-bike, witnesses said. Rachel Hager, a spokeswoman for the National Marine Fisheries Service in Washington D.C., declined requests for an interview on Tuesday. Giancarlo Rulli, a spokesman for the Marine Mammal Center, said officials there don’t know why anyone would want the head of a dead sea lion. In 2020, five headless sea lions were discovered off Vancouver Island, Canada. Anyone with information about the California incidents is asked to call the National Marine Fisheries Service at 1-800-853-1964.