Joe and Dr. Bea will track the course of a river from its origins as a small spring in the mountains to its mouth, the point where it enters the sea. They are keen to see how the river changes and what happens along its banks. But their main purpose is to find out how a dam that has blocked its waters is affecting the waters on the other side. Along the way, they must navigate some dangerous rapids.
Scientists tell us that 99.99% of ALL animal and plant species that have ever existed ARE NOW EXTINCT. What does 'extinct' mean and why does it happen? This book looks at the strange and very different kinds of animals that have walked the planet and which we will never see.
