Whales

The largest animal on the planet today is the blue whale. It is like a gentle giant swimming through the oceans, eating tiny sea creatures along the way. However, this type of whale-and many others-may disappear forever. Over-hunting and pollution are just some of the things affecting their chances of survival. This book describes these endangered marine mammals, explores what is going on, and what people can do to help before it is too late. Book jacket.