Final answer:
The solitary primate being referred to is the orangutan, which is characterized by generally living alone or with their offspring, contrasting the social group structures of other primates.
Step-by-step explanation:
The solitary primate that we have discussed, known for moving around alone or solely with its offspring, is the orangutan. Orangutans are unique among the great apes because they generally live solitary lives, which is in contrast to the social structures of other primates such as gorillas, chimpanzees, and most monkeys. Orangutans spend a significant amount of time on their own, with the exception of mothers who remain with their young until the offspring are old enough to be independent.
While other primates form complex social groups where female kinship and solidarity are central to their social fabric, orangutans are predominantly solitary, although they may occasionally interact with others, especially for mating purposes. Unlike other primates that show a strong preference for social companionship, orangutans have evolved to cope with living large segments of their lives without constant social engagement.