There are some things we already know about ears and hearing. We know that an elephant has really big ears and that dogs hear a lot better than us.

But there is still a lot to know about how our ears work, how we hear and why some of us have a hearing loss.

You can learn more by reading the next pages about hearing. You can use the menu on the left side of the screen. When you click on a headline the computer will take you to that page.