Kim Taylor / Peppered moth {Biston betularia} normal and melanic forms on birch trunk. UK.

RACHEL HINGLEY / Peppered moth (Biston betularia) Monkwood NR Near Worcester

Chris Mattison / Oak beauty moth (Biston strataria) resting on lichen. Wye Valley, Monmouthshire, Wales. March, UK. Focus-stacked image.

Robert Thompson / Peppered moth (Biston betularia) camouflaged among lichens, Banbridge, County Down, Northern Ireland, June.

Robert Thompson / Peppered moth (Biston betularia) camouflaged among lichens, Banbridge, County Down, Northern Ireland, June.

David Kjaer / Peppered moth caterpillar (Biston betularia) Wiltshire, England, UK, October.

Ingo Arndt / Peppered moth (Biston betularia) camouflaged amongst lichen on tree trunk, Germany

Chris Mattison / Oak Beauty moth (Biston strataria) Monmouthshire, March.

MYN / Dirk Funhoff / Peppered moth (Biston betularia), Mechtersheim, Pfalz, Germany. July. Meetyourneighbours.net project

Chris Mattison / Peppered moth (Biston betularia) light colour form. camouflaged, Drumnadrochit, Inverness, Scotland, August.

Cyril Ruoso / Peppered Moth (Biston betularia) caterpillar stage, France, September

Robert Thompson / Oak beauty moth (Biston strataria) The Argory Estate, (National Trust), Derrycaw, County Armagh, Northern Ireland, March 2013

Nature Production / Caterpillar larva of Peppered Moth (Biston betularia parvus) camouflaged as twig, Japan

Alex Hyde / Peppered Moth (Biston betularia), typical form, camouflaged on birch tree bark. Derbyshire, UK, July.

Alex Hyde / Peppered Moth (Biston betularia), typical form.

Stephen Dalton / Caterpillar larva of Peppered moth (Biston betularia) camouflaged as twig on plant, UK

Stephen Dalton / Peppered moth [Biston betularia} normal grey form and dark melanistic form. Dark form is better camouflaged in areas of pollution where lichen is absent, UK

Stephen Dalton / Peppered moths {Biston betularia} normal white and melanistic black forms. Melanistic form is better camouflaged in areas where lichen growth is inhibited by industrial pollution

Robert Thompson / Two Oak beauty moths {Biston strataria} camouflaged on bark, Argory Wood Derrycaw, Co. Armagh, Northern Ireland, March

Stephen Dalton / Peppered moth {Biston betularia} camouflaged on tree trunk against lichen, UK

Ingo Arndt / Peppered Moth (Biston betularia) camouflaged on tree bark, Europe

Andy Sands / Peppered moth (Biston betularia) At rest on pebble, Hertfordshire, UK

Andy Sands / Peppered moth (Biston betularia) Showing excellent camouflage against quartz rock, Hertfordshire, UK

PREMAPHOTOS / Caterpillar larva of Peppered moth (Biston betularia) sitting in its normal camouflaged pose on a birch tree, UK

PREMAPHOTOS / Caterpillar larva of Peppered moth (Biston betularia) sitting in its normal camouflaged pose on a garden apple tree. UK

Kevin J Keatley / Peppered moth {Biston betularia} camouflaged on leaf, Devon UK

Kim Taylor / Peppered moth {Biston betularia} male on birch trunk. UK. Asia.

Kim Taylor / Peppered moth {Biston betularia} normal and melanic colour morphs on birch trunk, UK.

Adrian Davies / Oak beauty moth {Biston strataria} camouflaged on bark, Essex, UK.

Bristol City Museum / Peppered moth {Biston betularia} specimens: melanic dark form is better camouflaged in urban areas and has been dominant in UK but as air quality has improved over past decades, the lighter form is ma...

Robert Thompson / Two Oak beauty moths (Biston strataria) resting camouflaged on tree bark, Northern Ireland, UK, March

Robert Thompson / Oak beauty moth (Biston strataria) resting on tree bark, Argory Moss, County Armagh, Northern Ireland, UK, March

Robert Thompson / Peppered moth (Biston betularia) camouflaged amongst lichens on tree bark, Killarney National Park, County Kerry, Republic of Ireland, April .

Robert Thompson / Peppered moth (Biston betularia) camouflaged on tree bark, Lackan Bog, County Down, Northern Ireland, UK, May

Robert Thompson / Caterpillar larva of Peppered moth (Biston betularia) camouflaged as twig on Birch tree, Peatlands Country park, County Armagh, Northern Ireland, UK

Nature Production / Moth {Biston robustus} black colour phase and white cololur phase resting on tree trunk, Japan

Nature Production / Four Moths {Biston robustus} camouflaged on tree trunk, Japan, april

Stephen Dalton / Peppered moth (Biston betularia) camouflaged on tree trunk, Sussex, England, UK, May.

Alex Hyde / Peppered moth (Biston betularia), camouflaged on lichen-encrusted Birch (Betula sp.) tree trunk. Peak District National Park, Derbyshire, UK. July.

Alex Hyde / Peppered moth (Biston betularia), camouflaged on lichen-encrusted tree trunk. Isle of Mull, Scotland, UK. June.

Alex Hyde / Peppered moth (Biston betularia) showing a comparison of the melanistic form f. carbonaria next to the typical paler form. The melanistic form has long been cited by genetic studies as an example of i...

Alex Hyde / Peppered moth (Biston betularia) showing a comparison of the melanistic form f. carbonaria next to the typical paler form on dark soot-covered bark. The melanistic form has long been cited by genetic...

Alex Hyde / Peppered moth (Biston betularia) showing a comparison of the melanistic form f. carbonaria next to the typical paler form on dark soot-covered bark. The melanistic form has long been cited by genetic...

Alex Hyde / Peppered moth (Biston betularia) showing a comparison of the melanistic form f. carbonaria next to the typical paler form. The melanistic form has long been cited by genetic studies as an example of i...

Alex Hyde / Peppered moth (Biston betularia) typical form on a white background. Derbyshire, UK.

Alex Hyde / Peppered moth (Biston betularia) melanistic form f. carbonaria on a photogtaphed on a white background. Derbyshire, UK.

Robert Thompson / Peppered moth (Biston betularia) resting on rock, camouflaged. Banbridge, County Down, Northern Ireland, UK. July.

Robert Thompson / Peppered moth (Biston betularia) on tree trunk. Banbridge, County Down, Northern Ireland, UK. June.

Robert Thompson / Peppered moth (Biston betularia) on tree trunk. Banbridge, County Down, Northern Ireland, UK. June.

Edwin Giesbers / Peppered moth (Biston betularia). De Kaaistoep Nature Reserve, Tilburg, The Netherlands. June. Controlled conditions.

Edwin Giesbers / Peppered moth (Biston betularia). De Kaaistoep Nature Reserve, Tilburg, The Netherlands. June. Controlled conditions.

Edwin Giesbers / Peppered moth (Biston betularia). De Kaaistoep Nature Reserve, Tilburg, The Netherlands. June. Controlled conditions.