Contents :
Preface.
1. Animal development.
2. Nutrition for animals.
3. Absorption of food in animals.
4. Communication system of animals.
5. Respiration in animals.
6. Excretion.
7. Osmoregulation in animals.
8. Nervous system.
9. Sense organs of animals.
10. Habits of vertebrates.
11. Animal breeding.
Index.