Question

Give any three characters that have developed during human evolution.

Answer 1

Following morphological characters have evolved during human evolution:

• Bipedal locomotion.
• Straight posture.
• Development of distinct lumbar curve.
• Development of broad basin-shaped iliac bones in the pelvic girdle.
• Acetabular cavities shifted inward to give straight posture.
• Increase in the size of brain and cranial cavity.
• Flattening of face.
• Loss of supraorbital ridges.
• Straightening of forehead.
• Formation of chin.
• Opposable thumb in the hands for grasping.
• Sparse body hair.
• Narrowing of nose.
• Thining of jaw bones.
• Reduction in the jaw musculature.
• Reduction in the size of canines.
• Increase in intelligence
• Social and cultural organisation