Age isn’t the primary factor in determining ear sensitivity in humans, sex and environment play a much bigger role.

Following is a transcript of the video. Narrator: We have noses to smell, eyes to see, and ears to hear, right? Well, actually, your ears are responsible for much more than just hearing.

We can hear sounds because our ears turn sound vibrations from the air, into signals that are sent to our brain. We can’t hear all levels of sounds. Sound waves with very high frequencies are ...

It turns out the human ear got off to a fishy start. Literally. A fascinating new study reveals that the mammalian outer ear has its evolutionary roots in the gills of ancient fish. This ...

The little muscles that enable people to wiggle their ears unconsciously flex when we're trying to pick one sound out of a din of noise, a new study finds. Think about how cats, dogs and certain ...

The human body often reacts to spiritual changes in subtle ways, and ear ringing is one of those signals. It could be a message from the universe. Have you ever experienced a sudden ringing in ...

Karl Koehler builds inner ear and skin organoids from human stem cells to model their development in health and disease.

This is an audio recording of plant sounds. The frequency was lowered so that it is audible to human ears.