THE ORIGIN OF MAN 89 



Following the dinosaurs the birds made their ap- 

 pearance, the oldest of which is known as the 

 Archaeopteryx. During the same time we see 

 the rise of the flying reptiles or pterosaurs. At 

 the close of this era the great reptiles began to 

 vanish but they were followed by the rise of the 

 archaic mammals which were however reptilian. 

 But they soon however vanished due to the rise 

 of the higher mammals. It being assumed that 

 the modern mammals had their origin in Asia 

 we have seen that by migration these animals 

 have spread all over the earth, and strange to 

 say that camels which originated in North Amer- 

 ica are today found in Asia and South America, 

 but it is not that point that I wish to be em- 

 phasized, but the fact that camels were the only 

 mammals that had their origin in a different 

 land, and why this is so, no one knows. We have 

 thus made a brief review of the evolution of 

 animal life and shall now discuss the origin and 

 evolution of man. 



