Klein & Hubert / Long eared hedgehog (Hemiechinus auritus) walking on a dune bordering the Gobi desert at dusk, The dunes bordering the desert have at their bottom circular green patches rich in insects, Mongolia

Klein & Hubert / Long eared hedgehog (Hemiechinus auritus) walking on a dune bordering the Gobi desert at dusk, The dunes bordering the desert have at their bottom circular green patches rich in insects, Mongolia

Klein & Hubert / Long eared hedgehog (Hemiechinus auritus) walking, dunes bordering the Gobi desert. The dunes bordering the desert have at their bottom circular green patches rich in insects, Mongolia

Klein & Hubert / Hedgehog (Erinaceus europaeus) with her hoglets, age 6 days, in a hollow trunk, France.

Klein & Hubert / Common hedgehog (Erinaceus europaeus) young orphan, curled in a ball in grass. France.

Klein & Hubert / Common hedgehog (Erinaceus europaeus) hoglet aged five days, eyes not yet open

Klein & Hubert / Common hedgehog (Erinaceus europaeus) hoglet age one week, curled into a ball, France.

Klein & Hubert / Hedgehog (Erinaceus europaeus) female sleeping with her hoglets, age 6 days, France.

Klein & Hubert / Hedgehog (Erinaceus europaeus) carrying hoglet, age 10 days to new nest. France.

Klein & Hubert / Hedgehog (Erinaceus europaeus) three hoglets, age three wee weeks, following adult female. France.

Klein & Hubert / Hedgehog (Erinaceus europaeus) hoglets age six days, France.

Klein & Hubert / Hedgehog (Erinaceus europaeus) hoglets uncurling from ball, age 10 days, France.

Pedro Narra / Hedgehog (Erinaceus europaeus) walking through puddle. Sado Estuary, Portugal . March

Michael Hutchinson / European hedgehog (Erinaceus europaeus) in garden at dusk, with house in the background, Bristol, England, UK, 2016.

Michael Hutchinson / Close-up of a European hedgehog (Erinaceus europaeus) sniffing, Bristol, England, UK, 2016.

Klein & Hubert / European hedgehog (Erinaceus europaeus) sniffing the air, in deciduous forest in autumn, France Controlled conditions.

Klein & Hubert / European hedgehog (Erinaceus europaeus) swimming in pond, split level view, France. Controlled conditions.

Nick Garbutt / European or Common hedgehog (Erinaceus europaeus) foraging in leaf litter. Isle of Mull, Scotland, UK, June.

Dietmar Nill / Close-up of two European hedgehogs (Erinaceus europaeus) feeding on windfall pears, Mossingen, Baden-Wurttemberg, Germany, October.

Dietmar Nill / European hedgehog (Erinaceus europaeus) in road at night, with approaching car headlights, Mossingen, Baden-Wurttemberg, Germany, October.

Cyril Ruoso / European hedgehog (Erinaceus europaeus) at dusk, Picardy, France. Non-ex

Ann & Steve Toon / Hedgehog (Erinaceus europaeus) curled up sleeping in autumn leaves, UK, June, captive.

Ingo Arndt / Hedgehog (Erinaceus europaeus) hibernating hidden in leaves, Germany, captive.

Edwin Giesbers,Edwin Giesbers / Hedgehog (Erinaceus europaeus) one week old orphan at rescue centre, captive

Mark Taylor / Baby Hedgehog (Erinaceus europaeus), nose up, sniffing the air.

Mark Taylor / Two baby Hedgehogs (Erinaceus europaeus) portrait, helpless and with eyes shut.

Mark Taylor / Two young Hedgehogs (Erinaceus europaeus) one standing, one rolled into a ball.

Mark Taylor / Baby Hedgehog (Erinaceus europaeus) portrait, holding one paw aloft.

Mark Taylor / Baby Hedgehog (Erinaceus europaeus) portrait, holding one paw aloft.

John Waters / Hibernating Hedgehog (Erinaceus europaeus) curled up into ball, with paws and snout visible, UK

Paul Hobson / Hedgehog (Erinaceus europaeus) released adult in garden at night, with house in background, Peak District, England, UK

Andy Rouse / European hedgehog (Erinaceus europeaus) yawning, UK

Andy Rouse / European hedgehog (Erinaceus europeaus) caught in beer can wrapper (photograph taken at vets) UK

Gary K. Smith / Hedgehog (Erinaceus europaeus) foraging for food in autumn woodland setting. UK

Laurent Geslin / Hedgehog (Erinaceus europaeus) at night in front of house lit up, Geneva, Switzerland

Jane Burton / Young European Hedgehogs {Erinaceus europaeus}, 2 days old, captive

Andy Sands / Hedgehog {Erinaceus europaeus} foraging on pavement in urban area, Hertfordshire, England

Jane Burton / Hedgehog carrying newborn to new nest (Erinaceus europaeus) captive, UK.

Laurent Geslin / Hedgehog {Erinaceus europaeus} in urban garden, UK.

Laurent Geslin / Hedgehog {Erinaceus europaeus} curled up / nesting in urban garden, UK.

Andrew Parkinson / Hedgehog in beech woodland {Erinaceus europaeus} Derbyshire, UK

Ingo Arndt / Orphan one-week-old Hedgehog baby {Erinaceus europaeus} Germany

Martin H Smith / Hedgehog (Erinaceus europaeus) eating Oystercatcher eggs on South Uist, Scotland. Introduced to the island in 1974, the hedgehog population has increased dramatically and is causing populations of nes...

Ingo Arndt / Hedgehog investigates hollow trunk {Erinaceus europaeus} Germany

Ingo Arndt / Hedgehog eating earthworm {Erinaceus europaeus} Germany

Dietmar Nill / Hedgehog about to feed on snail {Erinaceus europaeus} Germany

Niall Benvie / Hedgehog curled up showing underside {Erinaceus europaeus} Scotland, UK

Colin Seddon / Hedgehog, orphaned 8-day-old baby being fed from syringe