Nigel Cattlin / Clubroot (Plasmodiophora brassicae) distorted root of a Cabbage (Brassica oleracea). England, UK.

Nick Upton / Male Thick-legged flower beetle (Oedemera nobilis), with a Pyramidal orchid (Anacamptis pyramidalis) pollinium attached to its head, nectaring on Common hogweed flowers (Heracleum sphondylium), Wiltsh...

Nick Upton / Female Thick-legged flower beetle (Oedemera nobilis) and a Meadow brown butterfly (Maniola jurtina) nectaring on Greater knapweed flowers (Centaurea scabiosa) in a chalk grassland meadow, Wiltshire, E...

Nick Upton / Female Thick-legged flower beetle (Oedemera nobilis) and a Meadow brown butterfly (Maniola jurtina) nectaring on a Greater knapweed flower (Centaurea scabiosa) in a chalk grassland meadow, Wiltshire,...

Nick Upton / Juvenile Goldenrod spider (Misumena vatia) camouflaged on a Common hogweed (Heracleum sphondylium) flowerhead, reacting to a nearby fly (Muscidae) and a Thick-legged flower beetle (Oedemera nobilis),...

Alan Williams / River Dee swollen after heavy rain flowing through Llangollen looking west from the road bridge, North Wales, UK, October 2018.

Nick Upton / Male Thick-legged / Swollen-thighed flower beetle (Oedemera nobilis) feeding on nectar and pollen on a Meadow buttercup (Ranunculus acris) flower, England, UK. May.

Nick Upton / Thick-legged flower beetle / False blister beetle (Oedemera femoralis) male on Ivy (Hedera helix) flowers at night, Wiltshire, UK, September.

Eladio Fernandez / Guano palm (Coccothrinax spissa), Hispaniola.

Georgette Douwma / Swollen phyllidia (Phyllidia varicosa) Puerto Galera, Philippines.

Pal Hermansen / King eider duck (Somateria spectabilis) female with fishing hook caught in beak / mouth. Note the swollen head. Batsfjord, Finnmark, Norway, March.

Pal Hermansen / King eider duck (Somateria spectabilis) female with fishing hookcaught in beak / mouth. Note the swollen head. Batsfjord, Finnmark, Norway, March.