SIMILARITIES BETWEEN APES AND MAN -

1. Absence of tail.
2. Broadened chest due to flattening of sternum
3. Smaller lumber region due to reduced number of lumbar vertebrae
4. Relatively larger brain and cranial cavity, efficient memory.
5. Prominent brow ridges above the eyes
6. Capacity of communication by vocal means
7. Highly developed facial musculature for expression of rage, surprise, pleasure and laughter by facial gestures.
8. Tendency to line in pairs as couples, menstruation in females & social behavior
9. Similarities in blood proteins and banding patterns of chromosomes.