Which of the following is NOT categorized when determining cage size for nonhuman primates?

When determining cage size for nonhuman primates, there are specific categories that are taken into account based on the animal's size, age, and species, all aimed at ensuring their welfare and accommodating their behavioral needs.

In the context of this question, female macaques, as a specific category of primate, align with the importance of considering species and size when determining cage dimensions. This includes understanding the physical and behavioral needs of female macaques, which play a significant role in the necessity for adequate space and enrichment in their environment.

In contrast, marmosets, infants, and capuchins represent distinct categories of consideration based on age and species, which can necessitate different space requirements. Marmosets and capuchins, being different species, have specific needs that differ from those of female macaques. Similarly, infants, regardless of species, have particular space considerations due to their developmental requirements.

Thus, the distinction made here emphasizes that female macaques, while an important category, are recognized primarily under the broader species consideration and may not stand alone in the context of specific cage-size determination practices.