With fascinating insight, impeccable research, and captivating writing, controversial psychoanalyst Jeffrey Masson, a new father himself, showcases the extraordinary behaviour of outstanding fathers in the animal kingdom. From the emperor penguin, who incubates the eggs of his young by carrying them around on his feet for two months, to the sea-horse, the only male animal that gives birth to its young. Mason also examines nature's worst fathers; lions, bears, and humans. It is a book that will forever change our perceptions of parenthood and love.