Explain the factors that have contributed to the development of upright posture of early man.
Answer:
- Need to spot his enemies from afar.
- Need to expose lesser surface area of his body to the scorching heat of the sun.
- Need to use the forelimbs for protection against attacks.
- Need to use forelimbs for making tools/grasping objects.
- Disappearance of forests made it easier for man to walk upright in the open savannah woodlands.
- Need to spot his prey from afar.