Science: Birds May Do It, Bees May Do It

A group of scientists consider whether animals really think

Though humans are understandably loath to relinquish their monopoly on intelligence, observers have long believed that a good case can be made for the animal mind. At a weekend symposium at the National Zoo in Washington, D.C., a group of scientists put their brains together to decide whether or not animals think. Their conclusion: an unequivocal maybe.

The central problem in arriving at an answer is how to measure intelligence. Homo sapiens has a hard time devising IQ tests for its own species, much less trying to assess the brains of others. One...

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