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

Colin Monteath/ Hedgehog House / Ayers Rock, Uluru Kata Tjuta National Park, Northern Territory, Australia

Colin Monteath/ Hedgehog House / Sand dune at sunrise, Simpson Desert, Northern Territory, Australia

Colin Monteath/ Hedgehog House / Spinifex Grass (Spinifex sp) on sand dune with footprints, Simpson Desert, Northern Territory, Australia

Colin Monteath/ Hedgehog House / Parallel sand dunes in desert, Simpson Desert, Northern Territory, Australia

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.

David Pike / Hedgehog (Erinaceus europaeus) in woodland, Devon, England, UK, April. Captive.

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

Edwin Giesbers / Hedgehog (Erinaceus europaeus) rear view of young orphan at rescue centre, captive

Pal Hermansen / Hedgehog (Erinaceus europaeus) at rehabilitation centre. Ski, Akershus, Norway. July.

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