Well, the talk at Cornell last week went very well. Thanks to everyone who came. If you want to hear me wax rhapsodic about parasite manipulations (and explain how scientists study their evolution), you're in luck. Cornell has put the video of the talk online. The image is pretty small on the screen, so I decided to post the slide show on my web site here. I suggest opening two screens and advancing the slides as the talk progresses. At first the sound is a little scratchy on the video and the light balance takes a while to get properly adjusted. But don't give up--it evens out. You may also hear a baby gurgling from time to time. Near the end, when I talk about cuckoo birds as parasites, I refer to their host in one of the pictures as a cowbird. I should have said a reed warbler. And if you are curious to find out more, check out my book, Parasite Rex. Update: Apparently the video doesn't work for some readers. I am at a loss.