Why , Eating the same food , Breathing the same air , Living under the same conditions , develop completely different animals and plants? How does a single cell arise, for example, human? When, Where and how did life originate on Earth? How did man appear on Earth? Over these and many other similar questions, of course, Everyone has thought about it before .. The proposed book in an entertaining form will not only answer all these questions if possible, but will also tell about many wonderful, and sometimes unexpected discoveries in biology. A fascinating exposition, numerous drawings and original photographs will undoubtedly help to read this book.