Of all the mechanical critters in the ever-expanding robot bestiary, I think the fish could be my favorite (the headless dog is most definitely my least favorite). The video is certainly much more soothing to watch than the typical tech fare, shot among the coral reefs of Fiji. While the researchers were focused on testing out the fish itself, I'd like to see some of what the fish saw. I guess that's the next trip. Another suggestion: paint the fish like a tropical fish! If the idea is to send schools of these things into the deep as unobtrusive observers, they need to blend in!