Science: The Constant Bee

The bee, says Dr. Max Renner of the University of Munich, has a built-in time sense that ticks away, independent of all "environmental factors." To prove his point, Dr. Renner completed this week the first phase of an elaborate experiment in bee psychology.

More than 20 years ago, Dr. Karl von Frisch, topflight bee authority, thought of a way to test the bee's remarkable sense of time. He knew that if sugar water is offered to bees at a fixed hour, they will sally forth every day just in time to get it. They...

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