As a bat swoops through the night sky, it chirps out high-frequency calls and listens for the echoing sound waves to navigate the dark forest. Those chirps may be above the hearing range of most ...

Researchers played a sountrack to hedgehogs to identify the frequency of sounds they can hear ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. We now know hedgehogs hear sounds far beyond the limit of humans [Getty Images] Hedgehogs may be communicating with more than just ...