Juergen & Christine Sohns / Meerkat (Suricata suricatta) trio on guard, Oudtshoorn, South Africa

Juergen & Christine Sohns / Meerkat (Suricata suricatta) on guard, Oudtshoorn, South Africa

Ingo Arndt / Topi (Damaliscus lunatus) guard standing on termite mound, Masai Mara National Reserve, Kenya, Africa

Claudio Contreras / Atlantic sailfish (Istiophorus albicans) attacking school of Sardine (Sardinella aurita) bait ball, Isla Mujeres, Caribbean Sea, Mexico, February

Pete Oxford / Konyak Naga tattooed Ang or Chief. Only someone who has killed and taken a human head can be tattooed in this manner. Mon district. Nagaland, North East India, October 2014.

Richard Herrmann / Yellowfin Tuna (Thunnus albacares) and Blue Marlin (Makaira nigricans) beside floating kelp, Nine Mile Bank, San Diego, California

Graham Eaton,Graham Eaton / Highland cow with calf on moorland in snow above Malham, Yorkshire, winter.

Graham Eaton,Graham Eaton / Highland cow next to road above Malham, Yorkshire, winter.

Florian Möllers / Arctic expedition cruiseship M/S Stockholm in heavy sea and gale winds at Sarkapp (South Cape), Svalbard, Norway, July 2012

Neil Aldridge / Meerkat (Suricata suricatta) standing and keeping watch while another excavates a burrow in soft sand before disappearing underground for the night. Makgadikgadi Pans, Botswana, April.

Neil Aldridge / Young Meerkat (Suricata suricatta) standing on its hind legs near the edge of Makgadikgadi Pans National Park, Botswana, April.

Ben Hall / 2020VISION / Red grouse (Lagopus lagopus scoticus) standing on gritstone boulder with flowering heather (Ericaceae sp), Peak District NP, August 2011. Did you know? While the female grouse is incubating her eggs,...