This short volume selects and describes the main facts about the 'facts of life' and discusses their significance to man. It is only natural that it includes much information gleaned from mammalian reproductive patterns. It was their investigation that historically gave the clues to understanding what happens in human reproduction.

This short volume selects and describes the main facts about the 'facts of life' and discusses their significance to man. It is only natural that it includes much information gleaned from mammalian reproductive patterns. It was their investigation that historically gave the clues to understanding what happens in human reproduction.