|Image: Nick Hobgood|
By covering itself head to claw in hydroid polyps this crab not only looks good, it also gains protection since all those tentacles happen to be bristling with stinging cells. And it's pretty good for the polyps, too, as they get ferried around to all the best feeding areas their faithful mount can find.
It's a match made in heaven. Tentacle Heaven. And it's ALL about Tentacle Heaven.