Sensing Airflow
Paragraph 1: Sensing the flow of air over the body can be useful to an animal that flies. On a large scale, if an animal can sense the speed and direction of the relative wind, it can keep itself aligned with its intended flight direction by correcting for the transient effects of wind gusts. On a much finer scale, if an animal could detect the fine details of airflows, particularly on its wings, it could, in principle, adjust its movements to optimize its wing stroke. Biologists have demonstrated a variety of large-scale wind sensors in flying animals, but they have not yet found any fine-scale mechanisms.
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