Fire corals spreading on Caribbean reefs
Sessile organisms, such as corals where adults are immobile and their growth position is determined at settlement, are confronted by unique circumstances arising in that particular location.
In some habitats, anthropogenic effects are causing large changes in community structure, as well as the environmental conditions to which they are exposed. On a densely populated reef space is a limited resource. One of the ways organisms can win that space is through the strategy of shape.