In South American species, either the females ("S. boliviensis ") or males ("S. sciureus") are dominant over the other sex, and both sexes form stable dominance hierarchies.
Either the females ("S. boliviensis ") are dominant over the other sex. This is in South American species. Either males ("S. sciureus") are dominant over the other sex. This is in South American species. Both sexes form stable dominance hierarchies. This is in South American species.