How does the cranial capacity compare amongst hominids?

Cranial capacity varies significantly among hominids, reflecting their cognitive abilities and evolutionary development. Early hominids, such as Australopithecus, had smaller brain sizes, averaging around 400-500 cubic centimeters, while Homo habilis showed an increase to about 510-600 cubic centimeters. Modern humans (Homo sapiens) possess an average cranial capacity of approximately 1,300-1,500 cubic centimeters, indicating advanced cognitive functions. This trend of increasing brain size over time is often associated with the development of complex language, tool use, and social structures.