Cybernetics of Population Control.

The article discusses some ways in which nature deals with overcrowding in animal species to reflect in the world human population explosion. According to the author, the growth rate of microorganisms accelerates exponentially and declines when toxic metabolic products such as acids or alcohol accumulate. Another findings note that food and predators are the controlling factors in limiting populations for mammals other than man. He emphasizes that population growth depends only on the difference between birth rate and death rate.