Download Video Controlling swarms of flies and gnats by singing tones to them

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A few years ago I discovered an interesting insect behaviour whereby I could seemingly control large swarms of tiny flies/gnats simply by singing a range of tones to them. I first noticed this in the UK in 2004 but have since been able to replicate the experiment several times here in Australia and more recently captured it on video near the town of Woolgoolga in NSW. Initially I noticed that a swarm of gnats above me seemed to slow their frantic movement when I started to speak and after a lit...