Konrad Wothe / Slow motion clip of a male Banded demoiselle (Calopteryx splendens) on River water-crowfoot (Ranunculus fluitans), Bavaria, Germany, June.
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Will Watson / River crowfoot (Ranunculus fluitans) in flower, River Lugg SSSI, Leominster, Herefordshire, England, UK. July.
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Michel Roggo / River water-crowfoot (Ranunculus fluitans), with Hydra (Hydra sp), attached. River Aare, Berne, Switzerland, October. Photographed for The Freshwater Project.
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Michel Roggo / River water-crowfoot (Ranunculus fluitans), with Hydra (Hydra sp), attached, the Aare river. Brügg, Canton of Berne, Switzerland.October. Photographed for The Freshwater Project.