After all these years, one of my childhood curiosities is finally being addressed in the form of this time lapse video of a starfish walking.
I grew up playing in tidepools on the west coast, and observing starfish was a part of my summer routine. Regardless of how long I studied them, I never seemed to monitor any sign of life. I knew not to touch them as that would kill them, but I really had to fight temptation as I longed to see them elicit a response.
The video shows that they do in fact travel, even when on land, and not in the way I had expected! It's probably a good thing I wasn't able to observe these movements live. If these guys traveled this first, it would be a scary thing most people would probably try to dodge!
NOTE: You have to wait for a few minutes into the clip, as it starts with a feature on barnacles and snails.