On The Generation Of Animals is a book written by the ancient Greek philosopher Aristotle, which explores the process of reproduction and the development of life in animals. The book is divided into five parts, each discussing a different aspect of animal generation. The first part focuses on the various theories and beliefs about the origin of life and the role of the male and female in reproduction. The second part examines the formation and development of the embryo, from the moment of conception to the birth of the animal. The third part discusses the differences between viviparous (live-bearing) and oviparous (egg-laying) animals, and the various methods of incubation and gestation. The fourth part explores the anatomy and physiology of the male and female reproductive organs, and the mechanisms of fertilization and sexual differentiation. The final part of the book discusses the differences between different species of animals and their reproductive habits, and offers some general observations about the nature of life and reproduction. Overall, On The Generation Of Animals is a comprehensive and insightful work that offers a unique perspective on the natural world and the mysteries of life.THAT the male and the female are the principles of generation has been previously stated, as also what is their power and their essence. But why is it that one thing becomes and is male, another female? It is the business of our discussion as it proceeds to try and point out (1) that the sexes arise from Necessity and the first efficient cause, (2) from what sort of material they are formed.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.