Class 10 | Science 2 | Chapter 1 | Easy notes on Heredity and Evolution | Human Evolution

Easy notes on Chapter 1. Heredity and Evolution | Evidences of evolution 

HUMAN EVOLUTION 

i. Approximately seven crore years ago, monkey like animals are said to be evolved from some ancestors who were more or less similar to the modern lemurs.

ii. Tail of these monkey like animals of Africa is said to have disappeared about 4 crore years ago.

iii. Evolution of some of the 2 crore years old species of

apes seems to have occurred in different ways.They had to use their hands more for eating food and other work.

iv. First human like animal recorded 'Ramapithecus' ape from East Africa.

v. This ape grew up in size and became more intelligent and evolved about 40 lakh years ago.

vi. Skilled humans appeared to be the member of was genus Homo.

vii. About 15 lakh years ago, humans walking with erect posture evolved and existed in China and Indonesia of Asian continent.

viii. Evolution of upright man continued in the direction of developing its brain for the period of about 1 lakh years.

ix. Brain of 50 thousand year old man had been sufficiently evolved to the extent that it could be considered as member of the class-wise-man

(Homo sapiens).

x. Neanderthal man can be considered as the example of wise-man.

xi. The Cro-Magnon man evolved about 50 thousand

years ago and afterwards, this evolution had been faster than the earlier.