Blind Faith!

This Snapping Shrimp and the Goby has a symbiosis relationship with the Snapping Shrimp building and maintaining a burrow while the Goby uses the burrow the Shrimps build as their home.

The Gobies usually stands guard at the entrance of the burrow and feeds on passing 'food' when currents comes in while at the same time, signalling to the Shrimp with it's tail whether it is 'safe' for the Shrimp to come out of the burrow when it is maintaining the burrow by removing sands. The Shrimps are blind and uses their antennae to communicate with the Gobies to get 'safe clearance' to approach the entrance of the burrow each time they removes debris/sands.