 Flying foxes, a Chamorro delicacy, forage on the fleshy seed covering of cycad seeds and concentrate the toxin in their bodies.Twenty-four specimens of flying foxes from museum collections were tested for BMAA, which was found in large concentrations in the flying foxes from Guam.Currently there are studies examining BMAA biomagnification in marine and estuarine systems and its possible impact on human health outside of Guam.