Question

f. Write evolutionary history of
modern man. 23​

Answer 1

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Answer 2

Answer:

The  evolutionary  history  of  modern  man:

• Approximately  7  crore years ago,  the  dinosaurs disappeared  completely.
• At that  time,  monkey like  animals appeared  from  more  or less similar to  the  modern lemurs.
• Tail  of  these  monkey like  animals disappeared  about  4  crore  years ago.  
• Due  to enlargement  of  brain  and  improvement  in  their  hands,  ape like organisms were evolved and then later they  evolved  into  gibbon  and  orangutan.

• From gibbon  and  orangutan, gorilla  and  chimpanzee  evolved  about  2.5  crore  years ago.

• About  2  crore years ago first  human like  animals evolved  who  had  erect  posture  and able  to  use  their  hands.
• Ramapithecus ape  recorded  as  first  human like  animal. Afterwards,  this ape  grown  up in  size  and  became  more intelligent.
• About  20  lakh  years ago  skilled  human  developed  and  about  15  lakh  years ago evolved  human  with  erect  posture  and  walking.
• Neanderthal  man  was considered  as the  first  wise-man.
• About  50  thousand  years ago  the  Cro-Magnon  man  evolved  and  afterwards,  this evolution  had  been  faster than  the  earlier.