Imagine living in a world filled with sounds that humans can never hear. While people can typically detect sounds between 20 hertz and 20,000 hertz, many animals experience a much richer soundscape.

We talk about what an ear even is, how ears have evolved, how they work, and some of the cool ways animals have tweaked their ears to work for their lifestyle. We talk about what an ear even is, how ...

Animals do not uniformly hear the world. A forest at night, for instance, carries layers of sound that humans barely notice: insect vibration, shifting bark, distant movement underground, and echoes ...