Really I wouldn't mind one of those in my mouth anytime my brush gets incompetent. This is the first human-animal relationship I've seen maybe on the entire web, and definitely a disturbing one at that. The first thought that popped in my head at the first glance at the image was, "whose mouth is this; horse or human?" :-)
Ole, I've created a new mission for Symbiotic relationships & would appreciate it if you could add this spotting!
http://www.projectnoah.org/missions/7987627
The cleanershrimps do that on special cleaning stations and if they get used to divers it is the same for the shrimps if it is a human or a fish mouth. They were not forced to do this, it comes natural.
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