Final answer:
Primates such as chimpanzees and gorillas exhibit different territorial defense behaviors, with chimps patrolling borders and gorillas displaying intimidating actions. Grooming is widespread among primates for hygiene and social purposes, with variations in behavior across species. These activities are instrumental for resource protection, health, and social organization in primates.
Step-by-step explanation:
In terms of primate behavior, various species of primates perform territorial defense differently. For instance, chimpanzees are known to patrol the borders of their territory and sometimes engage in group defense against intruders. Gorillas, on the other hand, may display intimidating behavior such as beating their chests, but they have less frequent territorial disputes. Grooming is a common behavior across most primate species, serving both hygienic and social functions. It helps maintain cleanliness by removing parasites and debris, while also reinforcing social bonds and hierarchies within groups. Differences in grooming behavior may occur, with some species engaging in it more frequently or as part of more complex social rituals. Primates engage in territorial defense and grooming for survival and social reasons. Territorial defense helps to protect resources such as food and mating opportunities, while grooming is crucial for health and establishing social structures. The differences in these behaviors among primates can be attributed to factors like habitat, group structure, and evolutionary history, showing the relationship between primate behavior and environment.