This is a collection of books, articles, presentations, audio files and videos that are available as a DVD from Internet-First Univeristy Press. This DVD presents a sweeping, century-long history of research into reproduction in animals, with special emphasis upon dairy cattle. Four scientists and their careers are highlighted:

(1) Samuel Leonard (26 November 1905 - ) ... When Samuel Leonard turned 100 on Nov. 26 [2005], few realized that he was a pioneer of one of the most significant medical advances of the 20th century. Leonard played a key role in developing the birth control pill -- which liberated women's attitudes toward sex, galvanized the women's movement and launched the swinging '60s. The Cornell University professor emeritus of zoology, a trailblazer of reproductive endocrinology, is credited with the idea of using estrogen as a contraceptive. He prevented pregnancy in rats with the female sex hormone in a 1931 study, three decades before human birth control pills hit the market. "He is one of the great pioneers in the field of endocrinology," said colleague Ari Van Tienhoven, 83, professor emeritus of animal physiology at Cornell....

(2) Sydney Arthur Asdell (23 August 1897 - 21 February 1987) Sydney Arthur Asdell was a pioneer in the science of reproductive biology, and his fundamental research findings are widely recognized for their contributions to the remarkable development that has occurred in this field. Professor Asdell's early experiments helped to establish the basis for a number of the major advances in the field, including artificial insemination, superovulation, in vitro fertilization and embryo transfer, and estrous cycle regulation. He established the time of ovulation, the rates of passage of sperm and ova through the reproductive tract, and the important physiological effects of estrogen and progesterone on the reproductive tracts of farm animals. He organized much of the research that eventually led to measurement of blood concentrations of all of the major hormones controlling reproduction in cattle. He carried out a number of experiments to elucidate the hormonal control of lactation....

(3) Glenn Wade Salisbury (2 June 1910 - 3 February 1994) "Early in his career, Glenn Salisbury became the foremost researcher in the world in testing ideas and applying results that revolutionized the breeding of dairy cattle through the development of sound principles and procedures for artificial insemination, with semen from genetically superior sires. This has become the most powerful biotechnology used worldwide for the improvement of cattle. The guiding principles exemplified by Salisbury were good basic research, integrity, and superior accomplishment....

(4) Finally, Robert Hutchinson Foote, himself, whose biography and career are highlighted throughout this collection.