Yes, the relationship they form in the wild is similar to that of the symbiotic relationship of the clownfish and anenome. The pistol shrimp digs caves for the goby to live in and the goby protects the shrimp from predators. The "watchman" keeps a look out for danger and when the pistol is out of the hole it always keeps on anteni in contact with the goby's body. Amazing to watch. I have a couple not-so-good pics of the two in my gallery is you are interested.