How does a dolphin swim? How do they give birth in the water? How do they communicate with each other? Learn all about these intelligent, affectionate and sociable creatures that often swim in large groups, look after each other when injured and team toge...
Discover what makes up a small growing human body and how each of the different parts work separately and together. How do we breathe and digest food to provide energy to walk and run and play?
Readers will find out what happens to food and air and blood in our bodies; where our bones, muscles, veins, and nerves are; and how our brain works and controls what we do.