![Kees Moeliker: How a dead duck changed my life](https://pi.tedcdn.com/r/talkstar-photos.s3.amazonaws.com/uploads/4967874c-0c7b-4243-92a6-fdba2706f58c/KeesMoeliker_2013-embed.jpg?h=200)
One afternoon, Kees Moeliker got a research opportunity few ornithologists would wish for: A flying duck slammed into his glass office building, died, and then ... what happened next would change his life. [Note: Contains graphic images and descriptions of sexual behavior in animals.]