The worm and the pleasurable endoscopy.

The paddleworm inspires scientists to design a better endoscopy device:

They say their device would be able to "pull" itself along, rather than having to be forced into the body....

The [paddleworm], which is often used as fishing bait, moves in wet environments containing large amounts of solid and semi-solid material - similar to that often found inside the body...

"We looked to nature for a model and chose the paddleworm because it is capable of 'swimming' with ease through relatively soft, unstructured environments."...

"The advantage from our point of view is that the paddle worm has a much greater variety of styles of moving, since it can remain straight and just move the paddles, wriggle and keep the paddles still, or wriggle and move the paddles as well....

"Ultimately our idea is to turn the current ordeal of the colonic endoscopy procedure into something akin to a pleasurable experience!"