Nick Hawkins / Juvenile Pollock (Pollachius virens) school within the protective fronds of kelp near Port Joli, Nova Scotia, Canada. August

SCOTLAND: The Big Picture / Ancient Scots pine (Pinus sylvestris) amongst flowering Common heather / Ling (Calluna vulgaris). Rothiemurchus Forest, Cairngorms National Park, Scotland, UK.

Bernard Castelein / Heather (Calluna vulgaris) at dawn, with distant trees, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Heather (Calluna vulgaris) at dawn, with distant trees, Klein Schietveld, Brasschaat, Belgium

Bernard Castelein / Deergrass (Scirpus cespitosus) at dawn among Heather (Calluna vulgaris), Groot Schietveld, Wuustwezel, Belgium

Bernard Castelein / Oak (Quercus robur) in Heather (Calluna vulgaris) at sunrise, Klein Schietveld, Brasschaat, Belgium

Five Films / Fisherman using a net to land a large Pollack (Pollachius pollachius), with dog on boat, sustainably caught using pole and line, English Channel, near Salcombe, Devon, UK, November 2016.

Jeff Rotman / Fishermen sorting Haddock (Melanogrammus aeglefinus), Pollock (Pollachius) and Dogfish (Squalidae) from net, Georges Bank off Massachusetts, New England, USA, May 2015. Model released.

Jeff Rotman / Dragger net full of Haddock (Melanogrammus aeglefinus), and Dogfish (Squalidae) pulled up into boat, Georges Bank, Massachusetts, New England, USA, May 2015.

Jeff Rotman / Hauling in dragger net filled with Haddock (Melanogrammus aeglefinus), Pollock (Pollachius), Dogfish (Squalidae) and Lobster (Nephropidae) Georges Bank off Massachusetts, New England, USA, May 2015. M...

Sandra Bartocha / Silver birch (Betula pendula) with Heather (Calluna vulgaris) in full bloom, Reicherskreuzer Heide, Nature Reserve Schlaubetal, Germany, August.

Ben Hall,Ben Hall / Red grouse (Lagopus lagopus scotica) sitting in flowering heather, Peak District, UK, September