Cyril Ruoso / Rainforest interior, Peru

Edwin Giesbers / Crown daisy flower (Glebionis coronarium) Menorca, Balearic Islands, Spain, Europe

Stephen Dalton / Leaves of the Ginkgo tree (Ginkgo biloba) native to Central China

Konrad Wothe / Pasque Flower (Pulsatilla sp) on hillside beneath shining sun, Barakchin Island, Lake Baikal, Russia

Greg Basco/ BIA / Sunlight shining through rainforest, Rincon de la Vieja National Park, Costa Rica

Luis Quinta / Patterns made in sand by Mint-sauce worms (Symsagittifera roscoffensis / Convoluta roscoffensis) sunbathing at low tide to allow the symbiotic algae to photosynthesise. Costa de Caparica beach, Portug...

Luis Quinta / Patterns made in sand by Mint-sauce worms (Symsagittifera roscoffensis / Convoluta roscoffensis) sunbathing at low tide to allow the symbiotic algae to photosynthesise. Costa de Caparica beach, Port...

Luis Quinta / Mint-sauce worms (Symsagittifera roscoffensis / Convoluta roscoffensis) sunbathing on sand at low tide to allow the symbiotic algae to photosynthesise. Costa de Caparica beach, Portugal. April 2017.

Sandra Bartocha / English oak (Quercus robur) at the Biosphere reserve Suedost-Ruegen, Island Vilm, Germany

Konrad Wothe / Lady Fern (Athyrium filix-femina) in forest, Upper Bavaria, Germany

Alex Mustard / Giant clam (Tridachna gigas) opening its mantle to collect sunlight for its zooxanthellae, while surrounded by Scalefin anthias (Pseudanthias squamipinnis) Umm Aruk, St Johns, Egypt. Red Sea

Nick Upton / Mat of Green freshwater algae blooming on a damp draincover, releasing oxygen bubbles through photosynthesis, Wiltshire, UK, May.