Question

Among the human ancestors given below, cranial capacity was the least in _____ and highest in _____.
i) Homo erectus, ii) Homo habilis iii) Homo neanderthalensis, iv) Australopithecines

Answer 1

Cranial capacity refers to the volume of the brain inside cranium.

Throughout the human evolution, the brain size also increased with increase in the body mass.

The average cranial capacity of Australopithecines was about 400cc which is the least as compared to the rest.

The cranial capacities of Homo habilis were between 650-800cc.

Homo erectus had a cranial capacity around 900cc.

The Neanderthal man (Homo neanderthalensis) had a cranial capacity of about 1400cc.