Nick Garbutt / RF - Scarlet Macaws (Ara macao) in flight. Osa Peninsula (near Corcovado National Park), Costa Rica, Central America. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - European ground squirrel / Souslik (Spermophilus citellus) in grass with daisies, Gerasdorf, Austria. April. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - European ground squirrels / Sousliks (Spermophilus citellus)greeting, Gerasdorf, Austria. April. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - European hamster (Cricetus cricetus) with cheek pouches full, Austria. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - European hamster (Cricetus cricetus) Austria. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - Marbled white butterfly (Melanargia galathea) on knapweed, with soft focus leaves, Aosta Valley, Gran Paradiso National Park, Italy. (This image may be licensed either as rights managed or royalt...

Edwin Giesbers / RF - Marbled white butterfly (Melanargia galathea) on knapweed with soft focus flowers, Aosta Valley, Gran Paradiso National Park, Italy.

Edwin Giesbers / RF - Turk's cap lily (Lilium martagon) with solitary bee in flight, Aosta Valley, Gran Paradiso National Park, Italy. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - Titania's fritillary butterfly (Boloria titania) in mountain alpine meadow habitat, Aosta Valley, Gran Paradiso National Park, Italy. (This image may be licensed either as rights managed or royal...

Ann & Steve Toon / RF - Warthog male (Phacochoerus africanus) drinking, Zimanga game reserve, KwaZulu-Natal, South Africa, June. (This image may be licensed either as rights managed or royalty free.)

Ann & Steve Toon / RF - Leopard female (Panthera pardus) watched by two Gemsbok (Oryx gazella), Kgalagadi transfrontier park, South Africa, June. (This image may be licensed either as rights managed or royalty free.)

Chris Mattison / RF - Hazel (Corylus avellana) catkins and flower. Monmouthshire, Wales, UK. February (This image may be licensed either as rights managed or royalty free.)