 Cox and his colleagues found that BMAA is produced by symbiotic cyanobacteria found in the coralloid roots of cycads.Other than that, fruit bats or flying foxes, feeds on cycad seeds, and were a common food for the Chamorros.The bats bioaccumulate BMAA in their fat, and eating even a few bats would cause a dose of BMAA similar to levels that produced disease symptoms in the earlier animal models.