A good example of this is the shrimp and the goby fish. They spend most of their lives together. Despite being blind, a shrimp will maintain a burrow in the sand for both fish and shrimp to live in. If a predator is spotted by fish, as a warning it will touch the shrimp's tail. Both will retreat into the burrow. In return for the danger warnings to the blind shrimp, the fish gets a safe space to lay its eggs in the burrow maintained by the shrimp. Mutualism in action.
Commensalism.
com·men·sal·ism
/kəˈmensəˌlizəm/
noun
An association between two organisms in which one benefits and the other derives neither benefit nor harm.
A fine example of this is mites, who will hitch a free ride on the backs of larger flying insects or consider the hermit crab they will use the shells of dead sna
