The present volume of the book series Perspectives in Animal Ecology and Reproduction Vol. 8 is an excellent compilation of twenty four research as well as review communications, lucidly written by stalwarts from various research institutions and universities. The authors have tried to analyse the ecological spectra vis a vis breeding strategies adopted by diverse group of animals in nature and under controlled conditions. This volume shall generate further database and interest for the benefit of academicians, researchers and scientists working on animal ecology, breeding, reproduction and other aspects in these fields who shall find the book very useful and indispensable in their relevant research pursuits.