Socha W W, Lasano S G
J Med Primatol. 1980;9(1-2):83-7. doi: 10.1159/000460125.
A rhesus monkey family is described in which a group A offspring was born from a group AB mother and a group B male parent. Discovery of A and O genes in rhesus monkeys indicates that this species of macaques is polymorphic for the A-B-O blood groups, and not monomorphically B, as previously believed.