Axel Gomille / Wolf (Canis lupus), sitting in front of wrecked tank, military training area, Saxony-Anhalt, Germany

Doug Perrine / Barjacks (Caranx ruber), Yellowtail snapper (Ocyurus chrysurus), and Sergeant major damselfish (Abudefduf saxatilis) swimming around wreck of bow gun on C-58 shipwreck off Puerto Morelos, near Cancun,...

Axel Gomille / Military training ground, with bare land to prevent fires from spreading if caused during training manoeuvrers. This area is habitat to a population of wild Wolves (Canis lupus) as well as other rare...

Nick Garbutt / Himalayan marmot (Marmota himalayana) acting as a lookout sentinel outside its burrow. Ladakh, northern India.

Staffan Widstrand / Wild Wonders of China / Part of the 'Terracotta Army', showing how they were buried and found in Xian, Shaanxi, China, April 2018.

Staffan Widstrand / Wild Wonders of China / Part of the 'Terracotta Army', showing how they were buried and found in Xian, Shaanxi, China, April 2018.

Staffan Widstrand / Wild Wonders of China / Part of the 'Terracotta Army', showing how they were buried and found in Xian, Shaanxi, China, April 2018.

Staffan Widstrand / Wild Wonders of China / Part of the 'Terracotta Army', showing how they were buried and found in Xian, Shaanxi, China, April 2018.

Staffan Widstrand / Wild Wonders of China / Horses and a carriage of the 'Terracotta Army' in Xian, Shaanxi, China, April 2018.

Staffan Widstrand / Wild Wonders of China / Part of the 'Terracotta Army' , showing how they were burried and found in Xian, Shaanxi, China, April 2018.

Ashley Cooper / Members of Langdale Ambleside mountain rescue team attracting a helicopter to an injured walker on Bow Fell, Lake District, England, UK. July 2006

Ann & Steve Toon / Anti-poaching patrol, Thap Lan national park, Dong Phayayen-Khao Yai Forest Complex, eastern Thailand, August, 2014.