Red fox in the Netherlands (© Wim Weenink/Minden Pictures)
Brown bear in the Brooks River, Katmai National Park, Alaska (© littleting/Pradthana Jarusriboonchai/Getty Images)
Owens River and the Sierra Nevada near Bishop, California (© Interfoto/Danita Delimont)
Blue shark near the Portuguese archipelago of the Azores, North Atlantic Ocean (© Nuno Sa/Minden Pictures)
Purple and pink heather on heathland near Studland, Dorset, England (© allou/iStock/Getty Images Plus)
Ochre sea star on kelp off the coast of California (© Ralph Pace/Minden Pictures)
Dragonfly fossil, about 150 million years old, in Solnhofen, Bavaria, Germany (© Ingo Arndt/Minden Pictures)
Killarney Provincial Park, Ontario, Canada (© Jeffery D. Walters/Getty Images)
Monastery of Geghard, Armenia (© traumlichtfabrik/Getty Images)
Aerial view of American flamingos flying over Los Roques Archipelago National Park, Venezuela (© Cristian Lourenco/Getty Images)
Roaring Fork in Great Smoky Mountains National Park, Tennessee (© Bernie Kasper/Getty Images)
Blanket octopus in Palm Beach, Florida (© Steven Kovacs/Minden Pictures)
Autumn mist above Restormel Castle in Cornwall, England (© Robert Harding/Alamy)
Yuncheng Salt Lake in Yuncheng, Shanxi province, China (© Xinhua/Alamy)
Emperor penguin adults and chicks at the Snow Hill Island rookery, Antarctica (© Martin Ruegner/Getty Images)
Lantern display celebrating the Mid-Autumn Festival in Singapore (© Khin/Getty Images)