Question
Why Neanderthal man and modern man belong to two distinct species?
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Answer
Neanderthal man and modern man exhibit different characteristics, and hence, they are considered two distinct species. Below are the characteristic differences between Neanderthal man and modern man:
| Characteristics | Neanderthal man | Modern man |
| Locomotion | Absolute bipedalism | Bipedal locomotion |
| Head and forehead | Large head, broad, flat and sloping forehead | Upright head, skull on the top of the vertebral column, steep forehead |
| Brow ridges | Prominent brow ridges | Reduced brow ridges |
| Chin | No chin | Well developed and prominent chin |
| Hair on body | Less hair on the body | Prominent hair on limbs |
| Cranial capacity | $1450 cm^3$ | $1450$ to $1600 cm^3$ |
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