Jeff Foott / Maple (Acer sp) leaves and needles in autumn, Acadia National Park, Maine

Konrad Wothe / Giant snail (Megalobulimus) in a lowland rainforest, Panguana Reserve, Huanuco Region, Peru.

Paul Hobson / Weasel (Mustela nivalis) head and neck looking out of yellow autumn acer leaves, Sheffield, England, UK.

Paul Hobson / Weasel (Mustela nivalis) investigating birch stump with bracket fungus in autumn woodland, Sheffield.

Paul Hobson / Weasel (Mustela nivalis) looking out of hole on woodland floor with snowdrops, Sheffield, England, UK.

Mark Bowler / White lipped peccary (Tayassu pecari) on forest floor, Lago Preto Conservation Concession, Yavari River, Peru.

Konrad Wothe / Giant land snail (Megalobulimus sp), Panguana Reserve, Huanuco province, Amazon basin, Peru.

Sandra Bartocha / Wood anemones (Anemone nemorosa) flowering in European beech (Fagus sylvatica) forest, Neubrandenburg, Germany, April.

Sandra Bartocha / Scots pine (Pinus sylvestris) forest in spring, Muritz-National Park, Germany, May.

Mark Taylor / Bengal cat standing on a fallen tree.

Axel Gomille / Bengal tiger (Panthera tigris tigris), female resting and looking up Kanha National Park, India.

Ammonite / Wood ant (Formica rufa) carrying a large twig across woodland floor, Dorset, England, UK, April.