SCOTLAND: The Big Picture / Mountain hare (Lepus timidus) in winter coat in snow-covered upland habitat, Scotland, UK.

SCOTLAND: The Big Picture / Mountain hare (Lepus timidus) sat in snow hole with red grouse flying overhead , Scotland, UK. February.

SCOTLAND: The Big Picture / Mountain hare (Lepus timidus) in winter coat running across snow, Scotland, February.

SCOTLAND: The Big Picture / Mountain hare (Lepus timidus) in white winter coat, Cairngorms National Park, Scotland, UK, January.

Cyril Ruoso / Rabbit (Oryctolagus cuniculus) juvenile Burgundy, France.

Cyril Ruoso / Rabbit (Oryctolagus cuniculus) juvenile, Burgundy, France.

Pal Hermansen / Arctic hare (Lepus arcticus) stretching with oil drums at Eureka Settlement, Nunavut, Canada, August.

Matthew Maran / Rabbit (Oryctolagus cuniculus) on Kenwood Estate, Hampstead Heath, London, England, UK, August 2015.

Mark Hamblin / Mountain hare (Lepus timidus) in winter coat resting on moorland, Cairngorms National Park, Scotland, UK, February.

Ernie Janes / Brown Hare (Lepus europaeus) running through Tulip (Tulipa) field, Swaffham, Norfolk

Ernie Janes / Black-necked Hare (Lepus nigricollis) Sri Lanka

Orsolya Haarberg / Mountain hare approaching another (Lepus timidus). Vauldalen, Sor-Trondelag, Norway. April