The quest to explore the known world and to describe its creation and subsequent development is nearly as old as humankind. In the Western world, the best known creation story comes from the book of Genesis. It tells how God created the earth and all living things. Modern religious thinkers interpret the Biblical story of creation in various ways. Some believe that creation occurred exactly as Genesis describes it. Others think that God’s method of creation is revealed through scientific investigation. The Animal World presents an exciting picture of what scientists have learned about the great variety of the Earth’s animal life.

The advance of science

ne of the most exciting and challenging aspects of science is that its frontiers are constantly being revised and extended, and new developments are occurring all the time. Its advance depends largely on observation, experimentation, and debate, which generate theories that have to be tested and even then stand only until they are replaced by better concepts. For this reason, it is difficult for any science publication to be completely comprehensive. It is possible, however, to provide a thorough foundation that ensures that any such advances can be comprehended. It is the purpose of each book in this series to create such a foundation, by providing all the basic knowledge in the particular area of science it describes.