How does sexual selection contribute to biodiversity on earth? ASTRID T. GROOT investigates this question using the example of moths. As she explains in this video, in many species, including moths, the most common individuals are chosen as mates and the ones that deviate away from the mean are selected against. Following this principle, you would expect less and less variation but this is not the case. This LT Publication is divided into the following chapters: 0:00 Question 2:08 Method 3:20 Findings 6:08 Relevance 7:39 Outlook