Via Menno Schilthuizen on Twitter: Why do so many animal species have #asymmetrical genitalia? Sanne van Gammeren flash-froze fruit flies in the act to see if she could solve this question. Her study was published today in
@PeerJLife
https://peerj.com/articles/14225 #AnimalBehavior #Entomology #EvolutionaryStudies #diptera