Race is an arbitrary and artificial concept. No racial group is more or less intelligent than others.
The only time that cranium size and shape are a factor in determining intellectual capacity is when the cranial vault is affected by an underlying neurological disorder like severe microcephaly or hydrocephalus in children and adults.
In newborn infants, severe microcephaly is a symptom of a severely damaged brain, since the brain is too underdeveloped to expand the cranial vault.
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Race is an arbitrary and artificial concept. No racial group is more or less intelligent than others.
The only time that cranium size and shape are a factor in determining intellectual capacity is when the cranial vault is affected by an underlying neurological disorder like severe microcephaly or hydrocephalus in children and adults.
In newborn infants, severe microcephaly is a symptom of a severely damaged brain, since the brain is too underdeveloped to expand the cranial vault.