Here's a collaborative effort. Render by CannonFodder and description by me.
Webfilm 
An adaptation in the Filmoid has allowed it to cling onto the Stomachpod Drifter rather than simply staying rooted to the spot. This is a parasitical relationship as the Stomachpod gains nothing out of the relationship while the Filmoid is now mobile and thus able to feed more richly upon the nutrients it needs.
At this stage there is no intelligence evolved. Various mutations in the cement the Filmoid extrudes have produced a form that is good at sticking to stomachpods that happen to drift past.