The evolution of animal genitalia - Menno Schilthuizen

View full lesson: http://ed.ted.com/lessons/the-evolution-of-animal-genitalia-menno-schilthuizen Genitals are the fastest-evolving organs in the animal kingdom. But why is this so? And what’s the point of having decorative private parts? Menno Schilthuizen explains how the evolutionary biology of nature s nether regions uncovers a hidden world of seduction, conflict, and rivalry. Lesson by Menno Schilthuizen, animation by Mette Ilene Holmriis.