Final answer:
Primates use vocalizations to communicate like humans, helping them name resources and monitor the social group. However, primate vocalizations are limited compared to human language.
Step-by-step explanation:
Primates use vocalizations to communicate with each other, similar to how humans do. These vocalizations help them name resources and monitor the social group. For example, wild chimpanzees produce a range of calls with different meanings. Monogamous pairs of gibbons even perform morning duets, where each note carries a certain meaning. While impressive, primate vocalizations are still limited in comparison to the infinite productivity of human language.