Embedded Player In her new guide to the evolutionary biology of sex, Judson explores the sex lives of animals and insects. Posing as Dr. Tatiana, sex-advice columnist, she answers "letters" posted by such creatures as the fairy wren, the stalk-eyed fly and the African elephant. Her new book is Dr. Tatiana's Sex Advice to All Creation. Judson has also written for The Economist, Nature and Science. This interview first aired Aug. 13, 2002.