people used this in the past for hearing better
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Did Fred and Wilma hear better than us?
By Beth McCormick, Au.D. on Apr 17, 2018
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The Flintstones were fictional prehistoric cartoon characters of course, but did you know a recent study published in Science Magazine suggests the hearing of early hominins living more than two million years ago exceeded our own at certain frequencies?
Scientists believe early humans heard mid-frequency sounds better than we can today. Keen mid-frequency hearing acuity would have helped them communicate more easily while hunting in the great outdoors.
How do scientists study the hearing of humans who lived more than 2 million years ago? That was my first question, too!
Turns out, fossilized skeletal structures preserved anatomical properties of the the auditory system, allowing researchers to estimate, with accuracy, auditory capability. Scientists studied the fossilized skull and middle ear bones then reconstructed 3D computer models to predict hearing ability.