Download or read book Why Does the World Stay Green? written by Thomas C. R. White and published by CSIRO PUBLISHING. This book was released on 2005 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory explored in this book contends that animals are not controlled through predation but because they cannot obtain enough of the food they must have to reproduce and grow. This book explains how this comes about in nature and describes some of the ways in which animals have evolved to cope.