In: Biology
Group selection Theory | Darwin's theory |
1)It states that natural selection sometimes acts on a whole group of organisms. 2)It favours some group on other. 3)It leads to the evolution of traits those are group advantageous. 4)Example :-cooperative raising of young in elephants,cooperative hunting etc. |
1)According to this theroy natural selection occurs at induvidual level. 2)It favours some individuals on other. 3)It leads to evolution of traits those are advantageous to individuals themselves. 4)Example :- Polar bear's white coat is an adaptaion that evolved to benefit individual polar bears. |