Question

Following are the different stages of Human Evolution.

Write about their:

1. time period
2. Brain capacity
3. Height
4. Changes on the face

Answer 1

(a) Time period:

1. Australopithecus: They lived about 2-4 million years ago.
2. Homo erectus: They lived about 0.25-1.7 million years ago.
3. Homo neanderthalensis: They lived between 40,000-3,00,000 years ago.
4. Homo sapiens: They lived between 20,000-50,000 years back.

(b) Brain capacity:

1. Australopithecus: Their brain capacity was 400-600 cm³.
2. Homo erectus: Their brain capacity was 775-1255 cm³.
3. Homo neanderthalensis: Their brain capacity was 1200-1600 cm³.
4. Homo sapiens: Their brain capacity was 1650 cm3.

(c) Height:

1. Australopithecus: Their height was 100-120 cm.
2. Homo erectus: Their height was 150 cm.
3. Homo neanderthalensis: Their height was 160-170 cm.
4. Homo sapiens: Their height was 180 cm.

(d) Changes on face:

1. Australopithecus: Their face was prognathous. Brow ridges were prominent.
2. Homo erectus: Their face was prognathous. Jaws and teeth were strong.
3. Homo neanderthalensis: Their forehead was broad and sloping. Their jaw was large.
4. Homo sapiens: Their face was orthognathous. The forehead was broad but arched. They also had chins.