Paul Hobson / Red fox (Vulpes vulpes), two cubs play fighting. Sheffield, England, UK. May.

Paul Hobson / Red fox (Vulpes vulpes) cub looking at camera, in morning. Sheffield, England, UK. June.

Paul Hobson / Badger (Meles meles) eating apples in urban garden. Sheffield, England, UK. October.

Paul Hobson / Badger (Meles meles) crossing road in residential area at night. Sheffield, England, UK. October 2018.

Paul Hobson / Badger (Meles meles) emerging through gateway in wall at night. In urban area, Sheffield, England, UK. October 2018.

Paul Hobson / Wood warbler (Phylloscopus sibilatrix) singing whilst perched on branch, silhouetted at dawn. Sheffield, England, UK. May.

Chris Mattison / Small White / Cabbage white butterfly (Pieris rapae) on Lavender, Sheffield, UK July (Focus-stacked image)

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.

Paul Hobson / Small garden bumble bee (Bombus hortorum) frozen on small twig, covered in ice crystals, Sheffield, UK February 2011

Paul Hobson / Azure Damselfly (Coenagrion puella) male grasping stem with eyes and head in sharp focus. Sheffield, UK, May. 'Animal Portraits' category, British Wildlife Photography Awards (BWPA) competition 2012.

Paul Hobson / Harlequin Ladybird (Harmonia axyridis) melanic form, on turning leaf. Sheffield, October.

Paul Hobson / Feral Pigeon / Rock Dove (Columba livia) on city street. Sheffield, UK.

Paul Hobson / Silhouette of Wood mouse (Apodemus sylvaticus) on shelf in garden shed at night, Sheffield, Yorkshire, UK. British Wildlife Photography Awards (BWPA) competition 2011

Paul Hobson / Wild flower meadow in city centre, Sheffield, Yorkshire, UK, August 2009

Paul Hobson / Wild flower meadow in city centre, Sheffield, Yorkshire, UK, August 2009

Paul Hobson / Wild flower meadow in city centre, Sheffield, Yorkshire, UK, August 2009

Paul Hobson / Common european toad (Bufo bufo) sheltering under toadstool from rain, wild toad in controlled conditions, Sheffield, Yorkshire, UK

Paul Hobson / Signal crayfish (Pacifastacus leniusculus) on river bed near bridge, split level image. River Rivelin, Sheffield, England, UK. September 2018.

Paul Hobson / Signal crayfish (Pacifastacus leniusculus) displaying aggression with claws up, split level. River Don, Sheffield, England, UK. September 2018.

Paul Hobson / Signal crayfish (Pacifastacus leniusculus) displaying aggression with claws up. River Don, Sheffield, England, UK. September 2018.

Paul Hobson / Sedge warbler (Acrocephalus schoenobaenus) male singing whilst perched on Willow (Salix sp) branch. Sheffield, England, UK. May.

Paul Hobson / Robin (Erithacus rubecula) female with nesting material in beak, perched on old gate. Sheffield, England, UK. March.

Paul Hobson / Reed warbler (Acrocephalus scirpaceus) vocalising whilst perched amongst reeds in morning light. Sheffield, England, UK. May.

Paul Hobson / Reed warbler (Acrocephalus scirpaceus) perched on stem in morning light. Sheffield, England, UK. May.

Paul Hobson / Reed bunting (Emberiza schoeniclus) male singing amongst reeds. Sheffield, England, UK. May.

Paul Hobson / Redstart (Phoenicurus phoenicurus) male singing, perched on branch. Sheffield, England, UK. April.

Paul Hobson / Quaking-grass (Briza media) spikelets. Sheffield, England, UK. May.

Paul Hobson / Orange tip butterfly (Anthocharis cardamines) female resting on Cow parsley (Anthriscus sylvestris). Sheffield, England, UK.

Paul Hobson / Linnet (Carduelis cannabina) female perched on Gorse (Ulex sp). Sheffield, England, UK. May.

Paul Hobson / Golden plover (Pluvialis apricaria). Sheffield, South Yorkshire, England, UK. May.

Paul Hobson / Red fox (Vulpes vulpes) cub licking lips. Sheffield, England, UK. May.

Paul Hobson / Red fox (Vulpes vulpes) cub looking over shoulder at camera. Sheffield, England, UK. May.

Paul Hobson / Red fox (Vulpes vulpes) cub peering around hedge, in morning. Sheffield, England, UK. April.

Paul Hobson / Red fox (Vulpes vulpes) cub with Rabbit (Oryctolagus cuniculus) in mouth. Sheffield, England, UK. June.

Paul Hobson / Fly agaric toadstool (Amanita muscaria) on river bank, in deciduous woodland. Sheffield, England, UK.

Paul Hobson / Bee orchid (Ophrys apifera) on roadside verge. Don Valley, Sheffield, England, UK. June 2018.

Paul Hobson / Badger (Meles meles), two eating apples in urban garden. Sheffield, England, UK. October.

Paul Hobson / Badger (Meles meles), male snuffling in urban garden at night. Sheffield, England, UK. January.

Paul Hobson / Badger (Meles meles) between flowerpots on garden pation. Sheffield, England, UK. October.

Paul Hobson / Badger (Meles meles) in garden at night, viewed through conservatory doors. Sheffield, England, UK. August.

Paul Hobson / Badger (Meles meles) in garden at night, viewed through conservatory doors. Cat looking on from inside. Sheffield, England, UK. August.

Paul Hobson / Badger (Meles meles) investigating flowerpot in urban garden at night. Sheffield, England, UK. August.

Paul Hobson / Badger (Meles meles) in garden at night. Sheffield, England, UK. August.

Paul Hobson / Yellow bunting (Emberiza citrinella) male singing, perched on Hawthorn (Crataegus monogyna) branch. Sheffield, England, UK. April.

Paul Hobson / Yellow bunting (Emberiza citrinella) male singing, perched in Hawthorn (Crataegus monogyna) tree. Sheffield, England, UK. April.

Paul Hobson / Wood warbler (Phylloscopus sibilatrix) male singing, perched on branch in morning light. Sheffield, England, UK. May.

Paul Hobson / Whitethroat (Sylvia communis) male singing, perched on Hawthorn twig. Sheffield, England, UK. May.

Paul Hobson / Whinchat (Saxicola rubetra) male on migration perched on Reedmace. Sheffield, England, UK. May.

Paul Hobson / Wheatear (Oenanthe oenanthe), female perched on stone wall. Sheffield, England, UK. May.

Paul Hobson / Wheatear (Oenanthe oenanthe), female perched on stone wall. Sheffield, England, UK. May.

David Woodfall / Housing estate in Gleadless valley surrounded by woodland. Sheffield, England, UK, May 2017.

Paul Hobson / Dark-green fritillary butterfly (Argynnis aglaja) adult on pyramidal orchid, South Anstons, Sheffield, England, UK, July.

Paul Hobson / Common quaker moths (Othosia cerasi) camouflaged on rock, Sheffield, England, UK, April.

Paul Hobson / Common emerald moth (Hemithea aestivaria) at rest on leaf, Sheffield, England, UK, July.

Paul Hobson / Buff arches (Habrosyne pyritoides) moth adult on twig, Sheffield, England, UK, July.

Paul Hobson / The miller moth (Acronicta leporina) adult resting, Sheffield, England, UK, June.

Paul Hobson / Tawny miner bee (Andrena fulva) female at nest in soil, Sheffield, England, UK, May.

Paul Hobson / Tawny miner bee (Andrena fulva) female at nest in earth, Sheffield, England, UK, May.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) on a stained glass window of church on a sunny day Sheffield, England, UK, January.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 22 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 21 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 20 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 19 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 18 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 17 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 16 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 15 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 14 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 13 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 11 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 10 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 9 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 8 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 7 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 6 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 5 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 4 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 3 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 2 of 22.

Paul Hobson / Small tortoishell butterfly (Aglais urticae) adult emerging from chrysalis, Sheffield, England, UK, August. Sequence 1 of 22.

Paul Hobson / Ruby tiger moth (Phragmatobia fuliginosa) adult on fern, Sheffield, England, UK, August.

Paul Hobson / Ruby tiger moth (Phragmatobia fuliginosa) on fern, Sheffield, England, UK, August.

Paul Hobson / Pyramidal orchid (Anacamptis pyramidalis) South Anstons, Sheffield, Yorkshire, England, UK, July.

Paul Hobson / Pyramidal orchid (Anacamptis pyramidalis) South Anstons, Sheffield, Yorkshire, England, UK, July.

Paul Hobson / Purple thorn moth (Selenia tetralunaria) newly emerged leaf, Sheffield, England, UK, May.

Paul Hobson / Moth (Nemophora degeerella) with very long antennae, on bracken, Sheffield, England, UK, July.

Paul Hobson / Moth (Nemophora degeerella) with very long antennae on bracken, Sheffield, England, UK, July.

Paul Hobson / Hebrew character moth (Orthosia gothica) resting on pine bark, Sheffield, England, UK, April.

Paul Hobson / Figure of eighty moth (Tethea ocularis octogesimea) adult , Sheffield, England, UK, July.

Paul Hobson / Eyed hawk moth (Smerinthus ocellata) at rest on wall, Sheffield, England, UK, July.

Paul Hobson / Early thorn moth (Selenia dentaria) at rest on hawthorn, Sheffield, England, UK, April.

Paul Hobson / Early grey moth adult (Xylocampa areola) resting on birch bark, Sheffield, England, UK, April.

Paul Hobson / Purple thorn moth (Selenia tetralunaria) on newly emerged leaf, Sheffield, England, UK, May.

Chris Mattison / Small White / Cabbage white butterfly (Pieris rapae) on Lavender, Sheffield, UK July (Focus-stacked image)