Qstnid -I-4- Try To Trace The Various Components Of Human Evolution (Hint: Brain Size And Function, Skeletal Structure, Dietary Preference, Etc.) - 07: Evolution

Try to trace the various components of human evolution (hint: brain size and function, skeletal structure, dietary preference, etc.)

Ans : The various components of human evolution are as follows.

(i) Brain capacity

(ii) Posture

	Name	Brain capacity	Posture	Food	Features
1.	Dryopithecus africans	—	Knuckle walker,walked similar to gorillas and chimpanzees (was more ape-like)	Soft fruit and leaves	Canines large, arms and legs are of equal size
2.	Ramapithecus	—	Semi-erect (more man-like)	Seeds, nuts	Canines were small while molars were large.
3.	Australopithecus africanus	450 cm³	Full erect posture, height (1.05 m)	Herbivorous (ate fruits)	Hunted with stone weapons, lived at trees, canines and incisors were small
4.	Homo habilis	735cm³	Fully erect posture, height (1.5 m)	Carnivorous	Canines were small. They were first tool makers.
5.	Homo erectus	800-1100 cm³	Fully erect posture, height(1.5-1.8 m )	Omnivorous	They used stone and bone tools for hunting games.
6.	Homo neanderthalnsis	1300-1600 cm³	Fully erect posture, height (1.5-1.66 m)	Omnivorous	Cave dwellers, used hides to protect their bodies, and buried their dead
7.	Homo sapiens fossilis	1650 cm³	Fully erect posture with height (1.8 m)	Omnivorous	They had strong jaw with teeth close together. They were cave dwellers, made paintings and carvings in the caves. They developed a culture and were called first modern men.
8.	Homo sapiens sapiens	1200-1600 cm³	Fully erect posture, height (1.5-1.8 m )	Omnivorous	They are the living modern men, with high intelligence. They developed art, culture, language, speech, etc. They cultivated crops and domesticated animals.