Fred Bavendam / Several species of Basslets (Pseudanthias sp) swarming above a Leaf Coral (Pavona clavus), Milne Bay, Papua New Guinea

Fred Bavendam / Several species of Basslets (Pseudanthias sp) swarming above a Columnar Leaf Coral (Pavona clavus), Milne Bay, Papua New Guinea

Juergen Freund / Coral head {Pavona clavus}, Papua New Guinea

Gary Bell/ Oceanwide / Leaf Coral (Pavona clavus), Milne Bay, Papua New Guinea

Andy Sands / Slime mould (Didymium clavus), sporangia growing on the edge of a Beech leaf, Buckinhghamshire, England, UK, December - Focus Stacked

Nigel Cattlin / Ergot (Claviceps purpurea) ergots replacing grains in a ripening wheat ear