High levels of BMAA (β-methylamino-L-alanine), a neurotoxin produced by cyanobacterial blooms, and beta-amyloid plaques, a hallmark in human beings of Alzheimer’s disease, have been detected in the brain tissues from dolphins stranded on the beaches of Florida and Massachusetts. Davis et al detected BMAA in the cerebral cortex of stranded dolphins; they also report Alzheimer-like neurodegenerative changes in the brains of dolphins containing BMAA....
