William Tucker
The recent discovery of a miniature race of extinct "Hobbits" on a small island in Indonesia reminds us how closely attached we human beings remain to our biological evolution.
It is not that everything is "programmed into our genes." Even the most strident sociobiologists say that no more than 40 to 50 percent of our behavior is "hard-wired." Cultural custom and personal choice play an equally important role. But evolution and biology set certain ground rules.
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