Why do we need trees? Wanda gets the 'Big Book of Things to Know by 8¾' to teach her about trees. Why do birds migrate? Wanda and the 'Big Book of Things to Know by 8¾' explore why birds and ...

But Why is a show led by you, kids! You ask the questions and we find the answers. It's a big interesting world out there.On But Why, we tackle topics large and small, about nature, words ...