Zucchini Out West by Barbara Dana

Zucchini loves living with Billy.

Billy is a quiet, shy boy who loves animals. He has a list next to his bed of all of the endangered and threatened animal species in the world. He told Zucchini he wants to help shorten that list, to help save the lives of all of those animals, but he isn't sure yet how to do it.

Right now, Billy has two problems. One is his shyness. He never quite gets the courage to ask people questions, and sometimes he'll talk himself out of doing things because he thinks he'll be stupid.

The other problem is Zucchini. Now, Zucchini is Billy's best friend, but he's also a ferret. He's a small tan ferret with a cold nose, a black mask, and black feet, which is where the problem really starts. There are three different kinds of ferrets in the world, and one of them is endangered: the black-footed ferret. It's one of the rarest mammals in the world, and it's illegal to own one. So if Zucchini really is a black-footed ferret, he and Billy won't be able to stay together anymore.

The only way to know for certain is to ask one of the experts on ferrets. Billy has the chance, on a family vacation, to talk to the scientists who study ferrets and ask them questions about saving endangered animals, about ferrets, and about Zucchini in particular. If only he can pull his courage together...