A two-part miniseries about sexual selection - unique behaviors, elaborate displays and special adaptations that determine who picks whom, who mates with whom, and who produces the offspring that carry genes into the next generation. Scientists around the world are making amazing new discoveries about the complex nature of courtship throughout the animal kingdom, employing cutting-edge technology, robotics, chemical analysis, special cameras, even computer animation. It's a sexual education that takes us all way beyond the birds and the bees. Part One: What Females Want - In the animal world, females decide. But their decisions may not always be what others expect. What is it they are looking for? Monogamy? Variety? A special sound or smell? A touch of red? Babysitting skills? It could be any or all of the above.