Pigeons Help Monitor Air Pollution in London

By Dr. Becker
Pigeons are often regarded as dirty and unintelligent, akin to “flying rats” (another misunderstood species). In reality, these intelligent birds have been contributing to humankind for centuries, and probably far longer.
Genghis Khan is said to have been the first to recognize pigeons’ expert homing abilities (the ability to find its way home over very long distances) and used them to send messages back and forth while on the battlefield.1
In London, meanwhile, a “pigeon …

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