Cranial capacity
The cranial capacity is a measurement of the volume of the interior of the brain-pan at the Vertébré S which have at the same time a cranium and a brain. The most used measuring unit is the cubic centimeter.
Certain authors regard the volume of cranium as an indicator of the size of the brain, which is in his turn used to roughly indicate the potential intelligence of the organization. However, a greater cranial capacity is not always the indication of a more intelligent organization, since a larger capacity is necessary to control the body when it is larger. The comparisons of cranial capacity must thus be relativized according to the overall assets of the organization.
At many species, the cranial capacity is one of the elements of the sexual dimorphism. In addition, an important cranial capacity can in certain cases constitute an adaptation to the life in a colder environment.
Examples of cranial capacities of current species
- Orang-outang S: 275– 500 cm ³
- Chimpanzee S: 275– 500 cm ³
- Gorilla S: 340– 752 modern cm ³
- Men: 1100– 1700 cm ³
Examples of cranial capacities of species of missing Hominides
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