Coralline

Drifting idly around a broad oceanic arc, the bottle collides softly with tens of thousands of pelagic plastics all colonized by hard-shelled organisms, including barnacles, coralline algae, foraminifera and bivalve molluscs.

The pigeon rocked itself backwards and forwards on the bough, swelling out its breast feathers and laying its coralline beak upon them.