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Cake day: June 21st, 2023

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  • Dabundis@lemmy.worldtoFoxes@lemmy.worldTilting fox
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    8 days ago

    Taking the opportunity to share a super fun fact about this. The ridges in a human’s outer ear allow us to determine whether a sound is coming from above or below by subconsciously noting how different frequencies are bouncing off those ridges. Animals without those ridges can only determine the lateral direction a sound is coming from relative to their head’s orientation, and their method of figuring out whether the sound is from above or below is to tilt their heads and “listen on a different plane”