Question
Explain the difference between apes and human.
✓
Answer
Differences between ape and human :
| Characters | Human | Ape |
| 1. Habital | Terrestrial | Arboreal |
| 2. Locomotion | Erect and plantigrade (on soles) | Semierect and on outer edges of feet |
| 3. Limb-size | Legs longer than arms | Arms longer than legs |
| 4. Pollex | Opposable | Opposable |
| 5. Hallux | Not opposable | Opposable |
| 6. Simian gap (between incisor and canine) | Absent | Present |
| 7. Anterior premolars of lower jaw | Small and bicuspid | Large and pointed |
| 8. Neck muscles | Attached below the brain box | Attached to back of brain box. |
| 9. Basin (Space between pelvic girdles) | Broad basin | Narrow basin |
| 10. Body hair | Short and soft | Long and coarse |
| 11. Claws | Absent. Nails present | Present in Gibbon |
| 12. Ischial callosities | Absent | Present in Gibbon |
| 13. Cranial cavity | 1450-1600c.c. | Gibbon 100 c.c; Orangutan = 395, c.c., Chimpanzee = 400 c.c.; Gorilla = 520 c.c. |
| 14. Curves in vertebral column | Four | One |
| 15. Face | Orthognathous (flat) | Prognathous (protruding) |
| 16. Supra-orbital ridges | Absent | Present |
| 17. Chin | Distinct | Indistinct |
| 18. Lumbar curve | Present | Absent |
| 19. Dental arch | Rounded parabola | U-shaped parabola |
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