Sociology: A Self-Corrective for The Population Explosion?

What will come of the world's population explosion? Optimists talk of a limit brought about by voluntary birth control. Pessimists gloom about widespread starvation, plague, or the thinning effect of nuclear war. In the Bulletin of the Atomic Scientists, Dr. Hudson Hoagland of the Worcester Foundation for Experimental Biology suggests a third possibility. Nature, he says, has its own subtle systems for choking off excessive breeding.

Gland Trouble. When animals are overcrowded, says Hoagland, their increase often slows down even when they have plenty of food. Horrible things happen among jammed-up flour beetles. Females...

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