High-tech art (with a sense of humor)

This is a fun little TED talk about using technology to create whimiscal, interesting art installments that capture your attention because of some physical thing that's happening.

The whole talk is only about 8 minutes long, and the whole thing is interesting, but the part that got stuck in my head from when I first watched it a year or more ago, and the part that causes me to re-visit it now, is a few brief seconds of video showcasing a piece call "the pygmies".  In it you can see they've programmed some very rudimentary "pygmies" to hide when they hear a sound and come back out after all is quiet.

The thing that captures me so much about this is how a simple, programmed action can give such a lifelike quality to something so rudimentary.

Watch the video and you'll see what I mean.

https://www.youtube.com/watch?feature=player_embedded&v=FQdQhV1yjfc