Nile crocodile (Crocodylus niloticus), ZImanga game reserve South Africa, Africa

A sentry of the Welsh Guards at Windsor Castle, Windsor, Berkshire, England, United Kingdom, Europe

A gargoyle on Notre Dame de Paris cathedral keeping a watchful eye over the city below, Paris, France, Europe

LutherÌs Partner Goby (Cryptocentrus lutheri) Lives in partnership with the snapping shrimp Alpheus djiboutensis. One of many Goby/Shrimp partnerships, The goby always choosing to pair with the same species of shrimp. The goby keeps a watchful eye for the almost blind shrimp, in return for sanctuary in the hosts burrow. The shrimp digs constantly and maintains contact with the goby at all times via antennae. Red Sea.

Crab-eating fox (Cerdocyon thous), adult, prowling, portrait, Pantanal, Mato Grosso, Brazil, South America

Roe Deer (Capreolus capreolus), in a wheat field, Lower Austria, Austria, Europe

Front view woman meditating

Young spotted hyena (Crocuta crocuta) looking out of the burrow in the morning light, Maasai Mara National Reserve, Narok County, Kenya, Africa

Polar Bear (Ursus maritimus) on pack-ice, Spitsbergen, Norway, Europe

Portait von einem Pavian in schwarz-weiß schaut neugierig |

Lioness (Panthera leo) sitting in tall grass, Maasai Mara National Reserve, Narok County, Kenya, Africa

Portrait of a red fox (Vulpes vulpes) standing in the grass watching intently while hunting on a frosty October morning in Southcentral Alaska, Anchorage, Alaska, United States of America

Close-up portrait of a Canada Lynx (Lynx canadensis) resting in the shadows of a Southcentral Alaska alder thicket. Lynx populations are closely linked to booms and busts in the numbers of their main prey the snowshoe hare, Alaska, United States of America

Portrait of a sunlit, wolf (Canis lupus) standing in the brush in the snow, Churchill, Manitoba, Canada

Close-up portrait of a young male lion (Panthera leo leo) lowering head, Serengeti National Park, Tanzania, Africa

Close-up portrait of the profile of a red fox (Vulpes vulpes) looking up and testing the wind while hunting on a frosty, October morning in South Central Alaska, Anchorage, Alaska, United States of America

Close-up of a golden eagle's (Aquila chrysaetos) head with a catchlight in its eye in bright sunshine against a blurred grassy background. Shot with a Nikon D800 at Battle Abbey; Battle, East Sussex, England,

Close-up portrait of a lioness (Panthera leo) lying down in the golden long grass on the savanna in the Etosha National Park; Otavi, Oshikoto, Namibia

A Bengal tigress (Panthera tigris tigris) with a catchlight in her eye lies up to her neck in the dark shadows of a water hole. Her name is Maya 'The Enchantress', and she has orange and black stripes with white patches on her head. Shot with a Nikon D810 in Tadoba Andhari Tiger Reserve in India; Chandrapur, Maharashtra, India

Close-up of a southern giraffe (Giraffa camelopardalis angolensis) browsing leafy thornbush on the savanna against a blue sky and eyeing the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

Close-up portrait of a plains zebra (Equus quagga - formerly Equus burchellii) eyeing the camera through the bushes in the Etosha National Park; Otavi, Oshikoto, Namibia

Mono, close-up portrait of a Cape Buffalo (Syncerus caffer) standing, eyeing camera in Segera, Segera, Laikipia, Kenya

Portrait of a black wolf (Canis Lupus) in the wild looking at the camera from atop a snowbank, Haines Junction, Yukon, Canada

Close-up portrait of a Bengal tiger (Panthera tigris tigris) standing in the forest looking up, Madhya Pradesh, India

Close-up portrait of the profile of a red fox (Vulpes vulpes) pausing while hunting on a frosty October morning in South Central Alaska, Anchorage, Alaska, United States of America

Close-up portrait of a Canada Lynx (Lynx canadensis) looking at the camera through the branches of a Southcentral Alaska alder thicket. Lynx populations are closely linked to booms and busts in the numbers of their main prey the snowshoe hare, Alaska, United States of America

Close-up of a Lilac-breasted roller (Coracias caudatus) with catchlight flying over the savannah, Serengeti National Park, Tanzania, Africa

Moose cow (Alces americanus) watching ahead; Quebec, Canada

Close-up portrait of a collared pika (Ochotona collaris) pausing on a boulder in mid-August with a hank of wild grass in its mouth in Southcentral Alaska's Hatcher Pass in the Talkeetna Mountains north of Palmer, Alaska, United States of America

Close-up of a Lilac-breasted roller (Coracias caudatus) with catchlight and tucked wing feathers flies from bushes, Serengeti National Park, Tanzania, Africa

Closeup Of An Animal's Eye

Tiger (Panthera tigris) in the wild, Ranthambhore National Park, Northern India, Rajasthan, India

Puma with an injured eye walking through the landscape in Southern Chile; Chile

Brown Bear Sow (Ursus Arctos) Keeping An Eye On Her Cub, Alaska, United States Of America

Portrait of Grey heron, Midlands UK

Atlantic stargazer(Uranoscopus scaber). He lives buried in the sand, with only his two eyes and his mouth sticking out of the bottom. Fish of the Canary Islands, Tenerife.

Close up underwater portrait of a jacare caiman, Caiman yacare, in the Rio Claro. Rio Claro, Pantanal, Mato Grosso, Brazil

Close up underwater portrait of a jacare caiman, Caiman yacare, in the Rio Claro. Rio Claro, Pantanal, Mato Grosso, Brazil

Sahara sand viper (Cerastes vipera) in the sand, From Mauritania to Egypt. Captivity

Portrait of Grey heron, Midlands UK