I saw this picture in a talk by Eric T. Wang on "Accelerated Evolution in Recent Human History" / paper Global landscape of recent inferred Darwinian selection for Homo sapiens.
[I googled duck and ducklings after that, & here the pix was on google images of course]
Really memorable. "Bad parenting mother duck leads ducklings over drain".
From the web site, apparently in this particular case the ducklings were rescued. However, the talk was on natural selection - the Darwinian type of selection. The picture really brings home the importance of changes in the environment and their effect on selection and what the spiecies might be "selected" for.
P.S. This site seems to have a video of probably the same event, but I can't easily see it here right now http://www.msnbc.msn.com/id/5139410/.