Getting Around Human Din

It’s loud out there. All that banging and driving and dumping and flying and building we do is making the world noisier and noisier. While humans don’t seem to mind the sounds, and when we do we just put in our earplugs – animals are dealing with all the racket we make in interesting ways.

All environments have some kind of noise. Even before people animals had to deal with ambient sounds like rain, rivers, waves, wind and other animals’ calls. But, like most things, humans have come along and drastically increased the amount of noise out there.

On land, urban noise comes from highways, trucks, construction, airports and machinery. This urban noise typically occupies a low frequency band that can seep from urban and suburban areas out into rural and forested land.

More at Scientific American

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