A review on snake-inspired robot design was published on the IOP journal, Bioinspirations and Biomimetics, 2009 ,4, 021001. DOI: 10.1088/1748-3182/4/2/021001. The introduction paragraphs of the review described several advantages of snake-like robot compared with other types of design, which is quite interesting to read. But I did not go into the detail of the review. There are images of various design of snake robots in this paper. And this reminds me to search some videos in Youtube.com. It seems that these robots don’t just move like snakes. They also moves like worms, or something not seen in nature.

This video shows many motions of a snake-like robot. I’ve never seen a real snake climb up a tree, like that!

And this is one of the few snake-like robots that really move like a snake.

This poor little worm was stuck on the wall for minutes.

James K Hopkins, Brent W Spranklin, Satyandra K Gupta (2009). A survey of snake-inspired robot designs Bioinspiration & Biomimetics, 4 (2) DOI: 10.1088/1748-3182/4/2/021001