Sound absorbing wallpaper

Unfortunately, the absorption provided by moth wing scales is all in the ultrasound frequency range, above that which humans can hear.

Can a wallpaper be made that absorbs lower frequencies while maintaining the ultrathin structure employed by the moth? We can but wait and hope!

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I heard about this a short while back on Science Friday per NPR. Kind of twists my mind to see how nature has endured naturally, yet its scientific marvels abound! It was quite enough for me to consider fractals at the fringe of my understanding.