We know from the observation of fireflies in India1 that whole trees containing tens of thousands of these insects begin to blink in unison shortly after dusk. Casual observation of the sounds of night-time insects around the common suburban home shows us that audio-synchronous behavior occurs. We assume some group reproduction advantage is conferred by such synchrony. The pacemakers in the heart of every mammal are really the synchronous pulsing of thousands of special cells, yielding sufficient signal to cause a muscle action. What process allows such synchronization? How can these organisms, and even cells, conform to each other’s signal?
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