Commensalism – Relationship where one species benefits (but the other appears unaffected)
They commenced a listen (commensalism) to a silent disco to see how it would benefit one species but leave everything else unaffected by noise.
Atlantic puffins nest in vacated burrows of rabbits. As the rabbits no longer use the burrows they are unaffected by the puffins, who benefit by being able to keep their chicks away from predators which may eat them if they were to nest on the ground.
Barnacles attach themselves to turtles, whales and other marine animals in order to hitch a free ride to nutrient rich waters. The turtle is neither harmed/hindered nor benefited/helped by the barnacles as long as there aren’t too many attached to its shell.