Tony Wu / Humpback whale (Megaptera novaeangliae australis) female, stationary with calf heading to surface for breath of air. Vava'u, Tonga, South Pacific.
Gavin Hellier / Timelapse looking out of the front of a train on the elevated Dubai Metro System, Dubai, United Arab EmiratesJanuary 2017. (This image may be licensed either as rights managed or royalty free.)
Tony Heald / Hippopotamus (Hippopotamus amphibius) splashing in pool in evening light. Mana Pools National Park, Zimbabwe.
David Perpinan / Aeroplane flying in front of a total lunar eclipse, also called a Blood Moon, Barcelona, Spain, 27th July 2018.
Giri Cavale / Melanistic leopard / Black panther (Panthera pardus) on territorial patrol on track, Nagarahole National Park, Nilgiri Biosphere Reserve, Karnataka, India.
Sebastian Kennerknecht / Sea Otter (Enhydra lutris) pup hugging mother, Elkhorn Slough, Monterey Bay, California
Sebastian Kennerknecht / Ocelot (Leopardus pardalis) at night, Mamoni Valley, Panama
Sebastian Kennerknecht / Mountain Lion (Puma concolor) six month old female and male kitten, Torres del Paine National Park, Patagonia, Chile
Sebastian Kennerknecht / Sea Otter (Enhydra lutris), Elkhorn Slough, Monterey Bay, California
Sergey Gorshkov / Polar Bear (Ursus maritimus) sub-adult, Franz Josef Land, Rusia
Suzi Eszterhas / Western Grey Kangaroo (Macropus fuliginosus) nine-month-old joey with mother, Kangaroo Island, Australia
Richard Du Toit / African Lion (Panthera leo) mother and cub, Kgalagadi Transfrontier Park, South Africa
Mark Raycroft / Woodland Caribou (Rangifer tarandus caribou) females in autumn, Newfoundland, Canada
Richard Du Toit / Greater Double-collared Sunbird (Nectarinia afra) male feeding on flower nectar, Garden Route National Park, South Africa
Richard Du Toit / Cape Weaver (Ploceus capensis) male perching on thorny branch, Garden Route National Park, South Africa
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) parent brooding chick, Plazas Island, Galapagos Islands, Ecuador
Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pup with mother, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) playing with a Rosy-lipped Batfish which is too leathery to eat, Punta Vicente Roca, Isabela Island, Galapagos Islands, Ecuador