Guy Edwardes / Pilsdon Pen and Marshwood Vale in morning mist, Quarr Hill, Dorset, England, UK. May 2014.

Bruno D'Amicis / Fennec fox (Vulpes zerda) wild caught adult, kept in sheep pen in village, Kebili Governorate. Tunisia, April. Winner of the Fritz Polking Portfolio Award of the GDT Competition 2015.

Brent Stephenson / Stone cleats and circular dry-stone walls above the main settlement in Village Bay, Hirta. St Kilda, Outer Hebrides, Scotland. June.

Gary K. Smith / Domestic sheep (Ovis aries) being moved from pen at livestock market after auction, Hawes Mart, Yorkshire, UK, September 2011

Stephen Dalton / Merino sheep in pen, Otago, South Island, New Zealand

Will Watson / Sheep pasture with hedges and oak woodland in autumn colour and a rainbow over Pen Tir, Brecon Beacon National Park, Breconshire, Wales, November 2018.

Oriol Alamany / Sheep pen covered in wire to protect livestock from Snow leopard (Pantehera uncia) attack in the village of Kibber in Spiti valley, Cold Desert Biosphere Reserve, Himalaya mountains, Himachal Pradesh,...

Oriol Alamany / Sheep pen covered in wire to protect livestock from Snow leopard (Pantehera uncia) attack in the village of Kibber in Spiti valley, Cold Desert Biosphere Reserve, Himalaya mountains, Himachal Pradesh,...

Nick Garbutt / High valley homestead and unprotected sheep / domestic stock pen. Ulley Valley, Himalayas, Ladakh, northern India.

Nick Garbutt / Sheep / domestic stock pen covered with chain-mail to protect against attack from Snow leopards (Panthera uncia). This has cut predation of domestic animals by 90%. Ulley Valley, Himalayas, Ladakh, no...

Nick Garbutt / Sheep / domestic stock pen covered with chain-mail to protect against attacks from snow leopards (Panthera uncia). This has cut predation of domestic animals by 90%. Ulley Valley, Himalayas, Ladakh, n...

Ann & Steve Toon / Jacob sheep in pen, Appleby show, Appleby-in-Westmorland, Cumbria, UK, August.