The stump-tailed macaque, (Macaca arctoides), is one of the largest of the macaque family, adult males attaining weights approaching 25 kg. Our colony consists of fifty macaques, all laboratory bred, ...

One hundred and sixty-two female and 48 male rhesus macaques, and 10 female and 8 male stump-tailed macaques who had lived in single cages for several years were transferred to isosexual pair-housing ...