Nature has no accidents, she wastes no material and everything has a purpose. If you put up a good fight to live she will usually come to your rescue and give you enough of whatever is needed to tide you over. If you don't, she says you are not fit to people the earth and lets you go without a pang. Thus she weeds out all but the strong--and evolution marches on. Causes of Racial Characteristics This inherent potentiality for altering the organism to meet the demands of the environment is especially noticeable in races and is the reason for most racial differences. Differences in environment--climate, altitude and topography necessitated most of these physical differentiations which today enable us to know at a glance whether a man belongs to the white race, the
Page annotations:
Add a page annotation: