The people of the United States, and of all the world, vary considerably in complexion. Ever since the first true men evolved in Africa over two million years ago , people’s skin color has changed in various climates and localities. Their eyes, lips and noses have changed too. Adapting to one’s environment is one reason for variations in the characteristics of people. Another reason is that human beings have mingled and produced new combinations.
In this book the author helps us understand what causes the biological characteristics of different races and makes it easier for us to see that we are a single human species whose oneness is far more basic than its variations.
The people of the United States, and of all the world, vary considerably in complexion. Ever since the first true men evolved in Africa over two million years ago , people’s skin color has changed in various climates and localities. Their eyes, lips and noses have changed too. Adapting to one’s environment is one reason for variations in the characteristics of people. Another reason is that human beings have mingled and produced new combinations.
In this book the author helps us understand what causes the biological characteristics of different races and makes it easier for us to see that we are a single human species whose oneness is far more basic than its variations.