"Flashier Great Tits Produce Stronger Sperm" By Anna Holmes | January 21, 2010 | 2:20pm Latest Looks like someone at NatGeo is having a little fun this morning. [National Geographic] Login Label Name Email Label Name Email 0 Comments Inline Feedbacks View all comments Load More Comments Share Tweet Submit Pin GET JEZEBEL RIGHT IN YOUR INBOX Still here. Still without airbrushing. Still with teeth. Sign Up Leave this field empty if you're human: