Terry Whittaker / RF - Arctic foxes (Vulpes lagopus) interacting Blue colour morph. Hornstrandir Nature Reserve, Iceland. March. (This image may be licensed either as rights managed or royalty free.)

Ross Hoddinott / RF - Sand dunes with Marram grass (Ammophila arenaria) and beach at Seilebost beach, Isle of Harris, Scotland, UK. October (This image may be licensed either as rights managed or royalty free.)

Ross Hoddinott / RF - Marbled white butterfly (Melanargia galathea) resting among tall grasses and bathed in warm, early morning sunlight, Volehouse Moor, Devon, UK. July. (This image may be licensed either as rights...

Ross Hoddinott / RF - Banded demoiselles (Calopteryx splendens) male roosting among grasses, silhouetted against the sun reflected in the water, Lower Tamar Lakes, Cornwall, UK. July. (This image may be licensed eithe...

Ross Hoddinott / RF - Southern hawker (Aeshna cyanea) dragonfly in flight, Broxwater, Cornwall, UK. August.

Ernie Janes / RF - Mute swans (Cygnus olor) flock of non breeding adults, Fleet lagoon Dorset, England, UK, June. (This image may be licensed either as rights managed or royalty free.)

Ernie Janes / RF - Herring gull (Larus argentatus) with blue sky, England, UK, Digital composite. (This image may be licensed either as rights managed or royalty free.)

Ernie Janes / RF - Dandelion (Taraxacum officinale) seeds blowing in the wind, England, UK. May. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF - Giant Otter (Pteronura brasiliensis) feeding on fish in river, Pantanal, Brazil Medium repro only (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- White-necked Jacobin hummingbird (Florisuga mellivora) hovering with tail erect to show aggression , Tobago (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Yacare Caiman (Caiman yacare) cooling off, Pantanal, Brazil (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Jaguar (Panthera onca) old male hunting on riverbank, Pantanal, Brazil (This image may be licensed either as rights managed or royalty free.)