Andy Rouse / African lion (Panthera leo) female carrying young cub, Masai Mara, Kenya, Africa. Highly commended in the African Wildlife Category of the Nature's Best Photography Competition 2019.

Andy Rouse / Bengal tiger (Panthera tigris) male, sub-adult aged three years, face portrait. Ranthambhore National Park, India.

Shane Gross / A juvenile soldierfish, possibly a Crescent-tail bigeye (Priacanthus hamrur) in the open ocean at night off Anilao, Philippines.

SCOTLAND: The Big Picture / Beetle, (Rhagonycha fulva), feeding on oxeye daisy flower, Scotland, UK, July.

Will Burrard-Lucas / Young male melanistic leopard (Panthera pardus), Laikipia Wilderness Camp, Kenya. Photographed with a camera trap. EDITORIAL USE ONLY. All other uses require clearance

Karine Aigner / Bengal tiger (Panthera tigris tigris) head, close up. Ranthambore National Park, Rajasthan, India.

Karine Aigner / Bengal tiger (Panthera tigris tigris) licking paw. Ranthambore National Park, Rajasthan, India.

SCOTLAND: The Big Picture / European badger (Meles meles) in front of house at night, Glenfeshie, Cairngorms National Park, Scotland, UK.

SCOTLAND: The Big Picture / Eurasian badger (Meles meles), two foraging in Pine (Pinus sp) woodland. Glenfeshie, Cairngorms National Park, Scotland, UK.

Will Burrard-Lucas / Young male melanistic leopard (Panthera pardus), Laikipia Wilderness Camp, Kenya. Photographed with a camera trap. EDITORIAL USE ONLY. All other uses require clearance

Paul Williams / Sumatran tiger (Panthera tigris sumatrae) close up portrait, captive.

Giri Cavale / Melanistic leopard / Black panther (Panthera pardus) on territorial patrol on track, Nagarahole National Park, Nilgiri Biosphere Reserve, Karnataka, India.

Nayan Khanolkar / Bengal tiger (Panthera tigris tigris) in forest clearing. Camera trap image. Pench National Park, Madhya Pradesh, India. January 2018.

Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...

Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...

Andy Rouse / Bengal tiger (Panthera tigris) male 'T91 - Cowboy' at base of tree, Ranthambhore, India, Endangered species.

Lucas Bustamante / Female African lion (Panthera leo) face portrait, Etosha National Park, Harare Province, Namibia.

SCOTLAND: The Big Picture / Mountain hare (Lepus timidus) in a freshly dug snow hole, Cairngorms National Park, Scotland, UK, December.

SCOTLAND: The Big Picture / Pine marten (Martes martes) feeding, balanced between two logs, Ardnamurchan Peninsula, Lochaber, Scotland, UK, June.

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

SCOTLAND: The Big Picture / Red squirrel (Sciurus vulgaris) climbing tree trunk with autumn leaves, Highlands, Scotland, October 2015.

SCOTLAND: The Big Picture / Eurasian otter (Lutra lutra) portrait, Scotland, UK, April.

SCOTLAND: The Big Picture / Grey seal (Halichoerus grypus) swimming towards camera, Orkney, Scotland, UK, August.

Neil Aldridge / Leopard (Panthera pardus) male in vegetation, Chief's Island, Okavango Delta, Botswana. Vulnerable species.

Will Burrard-Lucas / Lion (Panthera leo) walking over the plain, taken with remote camera. Serengeti National Park, Tanzania. December

Anup Shah / Lion (Panthera leo) male approaching, Maasai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Andy Rouse / African Lion (Panthera leo) female carrying young cub. Masai Mara, Kenya, Africa. August.

Wim van den Heever / Lion (Panthera leo) photographed at night using a side lit spot light, Sabi Sand Game Reserve, South Africa

Wim van den Heever / Lion (Panthera leo) male with scars photographed with side-lit spot light at night. Greater Kruger National Park, South Africa, April.

Wim van den Heever / Lion (Panthera leo) male in darkness, Okavango Delta, Botswana.

Georgette Douwma / Big-eye fish (Priacanthus hamrur). Egypt, Red Sea.

Alex Mustard / Portrait of Bigfin squid (Sepioteuthis lessoniana) hovering in open water above a coral reef at night. Dampier Strait, Raja Ampat, West Papua, Indonesia. Tropical West Pacific Ocean

Andy Rouse / Bengal tiger (Panthera tigris tigris) portrait, whilst stalking, Bandhavgarh, India.

Espen Bergersen / Bengal tiger (Panthera tigris tigris) portrait, Bandhavgarh, India.

Espen Bergersen / Bengal tiger (Panthera tigris) baring teeth, Bandhavgarh, India.

Ole Jorgen Liodden / Bengal tiger (Panthera tigris tigris) close up of eye, hidden in vegetation, Bandhavgarh, India.

Ole Jorgen Liodden / Walruses (Odobenus rosmarus) adult and young hauled on ice. Hinlopen, Svalbard, Norway, June.

Andy Rouse / Bengal tiger (Panthera tigris tigris) 11 month cub in winter forest, Ranthambhore National Park, India.

Andy Rouse / Bengal tiger (Panthera tigris tigris) 11 month cub, Ranthambhore National Park, India.

Andy Rouse / Bengal tiger (Panthera tigris) walking portrait, Ranthambhore National Park, India. Crop of image 01500288 Endangered species.

Andy Rouse / African leopard (Panthera pardus) South Luangwa, Zambia.

Constantinos Petrinos / Bigfin reef squid (Sepioteuthis lessoniana) schooling parallel to one another. Lembeh Strait, North Sulawesi, Indonesia.

Tui De Roy / Santa Cruz Galapagos tortoise (Chelonoidis nigra porteri) feeding on grass, Santa Cruz Highlands, Galapagos

Nick Garbutt / Female Jaguar (Panthera onca palustris) with cub (estimated age 5 months), resting on a fallen tree over the Cuiaba River. Porto Jofre, Northern Pantanal, Mato Grosso State, Brazil, South America.

Roland Seitre / Young Lion (Panthera leo) in tree, Fathala Reserve, Senegal. Captive, occurs in sub-Saharan Africa, Vulnerable species.

Will Burrard-Lucas / Head portrait of male Lion (Panthera leo), Masai Mara, Kenya.

Denis-Huot / Leopard (Panthera pardus) portrait of young male, Masai-Mara game reserve, Kenya.

Ben Cranke / Jaguar (Panthera onca) drinking from the river's edge, Mato Grosso, Pantanal, Brazil. August.

Bruno D'Amicis / Young Fennec fox (Vulpes zerda) cub, offered for sale to the photographer by the young man who trapped it in the desert. Kebili Region, Tunisia. May 2014. Winner of the World in our Hands category, Wi...

Andy Rouse / Bengal Tiger (Panthera tigris tigris) male 'Romeo T6' cooling off in waterhole during hot summer. Ranthambore National Park, India.

Andy Rouse / Bengal Tiger (Panthera tigris tigris) female 'Noor T39' with cubs in water. Ranthambore National Park, India.

Doug Perrine / Scuba diver films bait ball of Bigeye scad (Selar crumenopthalmus) Keauhou Bay, Kona, Hawaii, Hawaiian Islands. Central Pacific ocean. March 2010. Model released.

Anup Shah / Lion (Panthera leo) old male with one eye standing next to a kill. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Jussi Murtosaari / Timberman beetle (Acanthocinus aedili) showing antennae which are four times the length of its body, central Finland, May.

Shattil & Rozinski,Shattil & Rozinski / Mule deer (Odocoileus hemionus), with the Denver skyline and Rocky Mountains in the background, Denver, Colorado, USA, November.

Shattil & Rozinski,Shattil & Rozinski / Black bear (Ursus americanus) cub climbing a fence, Minnesota, USA, May.

Edwin Giesbers / Sumatran tiger (Panthera tigris sumatrae), captive, native to Sumatra, Indonesia.

Edwin Giesbers / Close-up of an eye of a Sumatran tiger (Panthera tigris sumatrae), captive, native to Sumatra, Indonesia.

Edwin Giesbers / Sumatran tiger (Panthera tigris sumatrae), captive, occurs in Sumatra, Indonesia

Edwin Giesbers / Jaguar (Panthera onca) cub looking over its mother's back, captive, occurs in Southern and Central America.

Andy Rouse / African Lioness (Panthera leo) portrait, with aggressive expression because of cubs nearby Maasai Mara, Kenya, Africa

Nick Garbutt / Male Arabian Leopard (Panthera pardus nimr) at the Arabian Wildlife Centre & captive-breeding project, Sharjah, United Arab Emirates.

Franco Banfi,Franco Banfi / Local man looking down at shoal of Bigeye scad (Selar crumenophthalmus) Waigeo island, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Juan Carlos Munoz,Juan Carlos Munoz / Leopard (Panthera pardus) portrait, Samburu National Reserve, Kenya

Anup Shah,Anup Shah / Lioness (Panthera leo) resting on a fallen tree with a courting male. Masai Mara National Reserve, Kenya, July

Denis-Huot / Lion (Panthera leo) cubs sitting on termite mound, Masai-Mara, Kenya. Vulnerable species.

Denis-Huot / Lion (Panthera leo) males resting, Masai-Mara Game Reserve, Kenya. Vulnerable species.

Denis-Huot,Denis-Huot / Lion (Panthera leo) male feeding on a buffalo (Syncerus caffer) Masai-Mara Game Reserve, Kenya. Vulnerable species.

Igor Shpilenok,Igor Shpilenok / Portrait of male Reindeer (Rangifer tarandus) with large antlers, in velvet. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, June.

Denis-Huot,Denis-Huot / Lion (Panthera leo) cub, Masai-Mara Game Reserve, Kenya. Vulnerable species.

Denis-Huot,Denis-Huot / Leopard (Panthera pardus) female in tree, near the Talek river, Masai-Mara Game Reserve, Kenya

Edwin Giesbers,Edwin Giesbers / Sumatran tiger (Panthera tigris sumatrae) close-up head portrait, captive

Edwin Giesbers / Sumatran tiger (Panthera tigris sumatrae) close-up head portrait, captive

Sebastian Kennerknecht / Sunda Clouded Leopard (Neofelis diardi) male with cataract in his right eye in lowland rainforest, Tawau Hills Park, Sabah, Borneo, Malaysia

Vladimir Medvedev / Wild female Amur leopard (Panthera pardus orientalis) on rocky hillside, Kedrovaya Pad reserve, Primorsky Krai, Far East Russia, January. Critically endangered species. Commended in Wildlife Photograp...

Pete Oxford / Horse eye trevally / jack (Caranx latus) Jardines de la Reina National Park Cuba, Caribbean

Andy Rouse / African Lion (Panthera leo) adult looking from behind tree, half hidden. South Luangwa, Zambia, Africa.

Klaus Echle / Little Owl (Athene noctua) young bird peering through boughs. Black Forest, Germany, June.

Edwin Giesbers / Siberian tiger (Panthera tigris altaica) detail of patterns surrounding the eye, captive.

Edwin Giesbers / Big close up of the eyes of a European Brown bear (Ursus arctos) captive

Edwin Giesbers / Close up head portrait of melanistic / black Leopard (Panthera pardus) captive

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur) in front of a sea fan, Uepi Island, Solomon Islands

Georgette Douwma / Big-eye or Goggle-eye (Priacanthus hamrur) on wreck. Note colour change from deep red to silver. Egypt, Red Sea

Juergen Freund / Big eye jack school just under surface (Caranx sexfasciatus) Indo-Pacific.

Richard Du Toit / Close up of eye of African lion {Panthera leo} South Africa

Gerry Ellis / African Elephant (Loxodonta africana) portrait of female, taken with a wide-angle lens, David Sheldrick Wildlife Trust, Tsavo East National Park, Kenya

Norbert Wu / Bottlenose Dolphin (Tursiops truncatus) chases a school of Bigeye Scad (Selar crumenophthalmus), Roatan, Honduras

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur), Lizard Island, Great Barrier Reef, Queensland, Australia

Richard Du Toit / Lioness close-up of eye {Panthera leo} South Africa

Toby Sinclair / Close up of Tiger face {Panthera tigris}, India

Alex Mustard / Black and white photo of school of Bigeye trevally (Caranx sexfasciatus) form a circular shoal in open water, on the drop off of a coral reef. Ras Mohammed National Park, Sinai, Egypt. Red Sea. Highly...

Gabriel Rojo / Wild Jaguar (Panthera onca), Endangered, Cuiabá River,Pantanal, Mato Grosso, Brazil

Gabriel Rojo / Wild Jaguar (Panthera onca), Endangered, Cuiabá River,Pantanal, Mato Grosso, Brazil

Tony Heald / Lion (Panthera leo) young male walking. Mana Pools National Park, Zimbabwe.

Yashpal Rathore / Indian leopard (Panthera pardus fusca) female on rock in tea plantation. Nilgiri Biosphere Reserve, India. 2019. Camera trap image.