Konrad Wothe / Gladiolus (Gladiolus palustris) flowering with meadow brown butterfly (Maniola jurtina), Upper Bavaria, Germany.

Konrad Wothe / Larvae of Birch sawfly (Craesus septentrionalis) in alarm position, Upper Bavaria, Germany. October.

Jeff Foott / Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, Wyoming

David Fleetham / Great barracuda (Sphyraena barracuda) with three parasitic Copepods at end of upper jaw. Hawaii.

Konrad Wothe / Goosander (Mergus merganser) chick hunting mayfly, Upper Bavaria, Germany

Alfred Trunk/ BIA / Common Merganser (Mergus merganser) mother carrying chick, Upper Austria, Austria

Konrad Wothe / Pair of Rosalia longicorns (Rosalia alpina) climbing up a Beech tree (Fagus sylvatica) whilst mating, Upper Bavaria, Germany, August.

Konrad Wothe / Common Merganser (Mergus merganser) mother with chicks, Upper Bavaria, Germany

Jeff Vanuga / Old Faithful Geyser erupting at -30 Celsius in winter. Upper Geyser Basin, Yellowstone National Park, Wyoming, USA, January 2015.

Ann & Steve Toon / Namaqua chameleon (Chamaeleo namaquensis), Namib Desert, Namibia, April

Charlie Summers / The Great Andromeda Galaxy (M32) and its two brightest satellite galaxies M110 to the right and close to Andromeda, and M32 (Messier 32) to the upper left. June 11, 2013 at 02.27. Taken with digital i...

Konrad Wothe / Aggressive Mute swan (Cygnus olor) Upper Bavaria, Germany, Europe

Dr. Axel Gebauer / Oxeye daisy (Leucanthemum vulgare) abstract, Upper Lusatia Heath and Pond Landscape, Upper Lusatia UNESCO Biosphere Reserve, Germany

Dr. Axel Gebauer / Bacteria - iron and manganese oxidizers and their complementary reducers, in the mud of an empty fish pond, Upper Lusatia Heath and Pond Landscape, Upper Lusatia UNESCO Biosphere Reserve, Germany

Konrad Wothe / Common Merganser (Mergus merganser) mother carrying chicks on water, Upper Bavaria, Germany

Konrad Wothe / Common Merganser (Mergus merganser) mother carrying chicks on water, Upper Bavaria, Germany

Anup Shah / Mature male gelada (Theropithecus gelada) fighting head-on, upper lip curled back revealing teeth. Simien Mountains National Park, Ethiopia.

Konstantin Mikhailov / The upper forest belt in Altai Mountains after first snowfall, Katunsky Range with Siberian larch trees (Larus sibirica rufous) and Siberian pine trees (Pinus sibirica) Mt.Belukha Nature park, South-...

Steven David Miller / Australian freshwater / Johnstone's crocodile (Crocodylus johnsoni) with damaged upper jaw in shallow water waiting for a scrap from a fisherman, Lake Kununurra, Western Australia, July

Nick Turner / A couple relaxing amongst bluebells (Hyacinthoides non-scripta) in springtime woodland, Upper Soudley, Forest of Dean, Gloucestershire, May.

Nick Turner / A couple relaxing amongst bluebells (Hyacinthoides non-scripta) in springtime woodland, Upper Soudley, Forest of Dean, Gloucestershire, May.

Konrad Wothe / Girl looking at Garden Spider (Araneus diadematus) on web. Upper Bavaria, Germany, Europe, September. Model released.

Konrad Wothe / Partial eclipse of the sun, 3rd of March 2005, seen from Upper Bavaria, Germany.

Alex Mustard / 2020VISION / Phosphorescent Seapen (Pennatula phosphorea) extends out of the muddy seabed in the calm waters of the upper reaches of a Scottish sea loch. Loch Duich, Ross and Cromarty, Scotland, UK, April

Joe Cornish / 2020VISION / Looking west from the upper slopes of Cul Mor, Coigach / Assynt SWT, Sutherland, Highlands, Scotland, UK, June 2011

Brent Stephenson / Fairy Prion (Pachyptila turtur) in flight low over the sea surface showing upper wing. Hauraki Gulf, Auckland, New Zealand, October.

Andy Rouse / View from the undergrowth looking up into the canopy of rainforest; prime Gorilla (Gorilla beringei) habitat of the Susa group on the upper slopes of Karisimbi Volcano. Virunga Volcanoes National Park...

Juergen Freund / Friant's sea star (Nardoa frianti), close-up of skin of the upper side. North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Researchers Guido and Katja Westhoff work in a mobile lab in the bush. To handle the deadly Common death adder (Acanthophis antarcticus) Guido puts the head and upper portion of the snake in a plastic...

Mary McDonald / White-headed Mousebirds (Colius leucocephalus) clustered together in tree to keep warm in the Upper Mara, Masai Mara Game Reserve, Kenya

Christophe Courteau / Jaguar (Panthera onca palustris) wild pregnant female, in undergrowth beside the Cuiaba River, Pantanal, Mato Grosso, Brazil, September 2008. This individual is called BORBOLETTA by researchers (pho...

Christophe Courteau / Jaguar (Panthera onca palustris) wild pregnant female, in undergrowth beside the Cuiaba River, Pantanal, Mato Grosso, Brazil, September 2008 This individual is called BORBOLETTA by researchers (phot...

Andy Sands / Red Clover (Trifolium pratense) close up of flower, Upper Teesdale, County Durham, England. England, UK, June

Pete Oxford / Rainbow over rainforest and Kanuku Mountains, Upper Takutu-Upper Essequibo, Guyana

Pete Oxford / Rainforest and Kanuku Mountains, Upper Takutu-Upper Essequibo, Guyana

Wild Wonders of Europe / Biancar / Veliki Prstavci waterfalls close to Gradinsko lake at dawn, Upper Lakes, Plitvice Lakes NP, Croatia, October 2008. Highly commended in GDT European Nature Photographer of the Year competition 2010.

Wild Wonders of Europe / Zupanc / Upper Kriz Lake with ice melting, Mount Triglav (2,864m) in the distance, Triglav National Park, Slovenia, July 2009

Jeff Vanuga / Bison (Bison bison) in deep snow in the Upper Geyser Basin, Yellowstone National Park, Wyoming, USA, January 2008

Ian McCarthy / Silhouette of mastiff dog crossing a bridge with Himalayas in the background, Upper Dolpo, Nepal

Jeff Vanuga / Bull Bison (Bison bison) warming himself in the steam from the Firehole River, Upper Geyser Basin, Yellowstone National Park, Wyoming, USA, January

Wild Wonders of Europe / Biancarelli / Early morning in the Milanovac lake, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Sunken tree trunk with vegetation in Batinovac lake, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Galovacki Buk waterfalls, Upper Lakes, Plitvice Lakes NP Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Waterfalls and abundant mosses (Cratoneuron commutatum) and (Bryum ventricosum) growing on the Labudovac barrier, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Tree colours reflected on the Galovac water surface, Upper Lakes, Plitvice Lakes NP, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / European beech tree (Fagus sylvatica) by Proscansko Lake, Upper lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Proscansko lake, early morning light, near Ljeskovac village, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Galovac Buk waterfalls, Upper lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancar / Veliki Prstavci waterfalls close to Gradinsko lake at dawn, Upper Lakes, Plitvice Lakes NP, Croatia, October 2008 WWE BOOK. WWE OUTDOOR EXHIBITION PRESS IMAGE. WINNER - Wild Places category of Wildlif...

Wild Wonders of Europe / Biancarelli / Moon shining over Proscansko lake, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Galovac Buk waterfalls, Upper lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Proscansko lake near Ljeskovac village at dawn, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Mist over the water surface of Gradinsko Lake at dawn, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Fallen tree submerged in Gradinsko Lake and European beech (Fagus sylvatica) leaves, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Veliki Prstavci waterfalls, Upper lakes, Plitvice Lakes NP, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / European beech tree (Fagus sylvatica) by Proscansko Lake, Upper lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Beech (Fagus sp) branches and water reflections in Proscansko Lake, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Small cascade on travertine, Galovac barrier, Upper Lakes, Plitvice Lakes NP Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Water running through the woods around Gradinsko Lake, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Forest reflected on Proscansko lake's surface, Upper lakes, Plitvice National Park Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Veliki Prstavci waterfalls close to Gradinsko lake, dawn, Upper Lakes, Plitvice Lakes NP, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Water disappearing underground, Ciginovac lake, Upper Lakes, Plitvice Lakes National Park, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Veliki Prstavci waterfalls, Upper lakes, Plitvice Lakes NP, Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Sycamore (Acer pseudoplatanus) leaves over Gradinsko Lake, Upper lakes, Plitvice Lakes NP Croatia, October 2008

Wild Wonders of Europe / Biancarelli / Galovac Buk waterfalls, Upper lakes Plitvice Lakes National Park, Croatia, October 2008

Jerry Monkman / A woman kayaking on the upper reaches of the York River at high tide, sunset, York, Maine, USA. Model Released. May 2008

Jerry Monkman / A woman kayaking on the upper reaches of the York River at high tide, York, Maine, USA. Model Released. May 2008

Thomas Lazar / Aerial view of Little Carp River and early autumn woodland, Porcupine Mountains State Park, Upper Peninsula, Michigan, USA

Jack Dykinga / Aerial view of alluvial patterns in the Upper Gulf and Colorado Delta Biosphere Preserve, El Golfo, Baja California, Mexico

Gerry Ellis / Mid and upper canopy interior of tropical rainforest, Kakamega Forest Reserve, Kenya

Mark Brownlow / Aerial view of Upper Yosemite Falls in Yosemite NP, California, USA. BBC Planet Earth series. May 2006

Andrew Parkinson / Snow on the upper slopes of the Monadhliath mountains, Highlands, Scotland.

Andrew Parkinson / Hikers climb A Chailleach in blizzard, Monadhliath mtns, Highlands, Scotland.

Shin Yoshino / Masai Giraffe (Giraffa tippelskirchi) stretching neck to graze on upper leaves on tree, Botswana

Gerry Ellis / Gas effluence pouring out of smoke stacks at nuclear power plant, upper Ohio River, Ohio

Gerry Ellis / Tchupalla Falls in the upper section of Henrietta Creek, Palmerston National Park, Queensland, Australia

Tim Fitzharris / Bald Cypress (Taxodium distichum) at upper Blue Basin, this is a major migratory bird stopover for the Mississippi Flyway, Reelfoot National Wildlife Refuge, Tennessee

Tui De Roy / Scarlet Macaw (Ara macao) flying in rainforest canopy, upper Tambopata River, Peruvian Amazon, Peru

Tui De Roy / Scarlet Macaw (Ara macao) pair 30 meters high in rainforest canopy, upper Tambopata River, Peruvian Amazon, Peru

Jim Brandenburg / Morning Glory pool in Upper Geyser Basin, Yellowstone National Park, Wyoming

Nick Gordon / Aerial view of Amazonia, Brazil - Upper Rio Negro at Equator.

Konrad Wothe / Loisach River covered with a dusting of fresh snow, Lake Kochel, Upper Bavaria, Germany

John Cancalosi / Fossil fish. Upper Jurassic (Gyrouchus) Solnhofen, Germany

Christoph Becker / Matterhorn mountain with sun on upper slopes. Switzerland

Doug Gimesy / Researcher and assistant set up Platypus (Ornithorhynchus anatinus) catching fyke nets with assistant. Upper Bunyip River, Bunyip State Park, Victoria, Australia. April, 2018. Model released

Robert Valentic / Red-bellied Blacksnake (Pseudechis porphyriacus) female, upper Pambula River, NSW, Australia, spring. Controlled conditions

Robert Valentic / Gippsland Water Dragon (Intellegama lesuerii howittii) male, upper Pambula River, New South Wales, Australia. Controlled conditions

Alex Mustard / A backlit photo of a British World War II BSA M20 motorbike inside Hold 2 (port side, upper level) of the wreck of the Thistlegorm, with lionfish (Pterois volitans). Sha'ab Ali, Red Sea. Sinai, Eg...

Nick Garbutt / North American river otter (Lutra canadiensis), two standing at edge of frozen Upper Yellowstone River, Hayden Valley, Yellowstone, USA. February.

Nick Garbutt / North American river otter (Lutra canadiensis), two running into partially frozen Upper Yellowstone River, Hayden Valley, Yellowstone, USA. February.

Nick Garbutt / North American river otter (Lutra canadiensis), two running into partially frozen Upper Yellowstone River, Hayden Valley, Yellowstone, USA. February.

Nick Garbutt / North American river otter (Lutra canadiensis), two running in snow. Upper Yellowstone River, Hayden Valley, Yellowstone, USA. February.

Jack Dykinga / Santa Rita prickly pear (Opuntia santarita) cactus flower with new growth spines on pad. Santa Catalina mountains foothills, Upper Sonnoran Desert, Arizona, USA. May.

Heather Angel / Figwort (Scrophularia grandiflora) against sky. Globose flower with protruding upper lip that functions like umbrella to protect stamens. Cultivated in garden.

Heather Angel / White dead nettle (Lamium album) with stamens protected from rain by overhanging upper lip. Pollinated by bumblebees. Naturalised in garden, Surrey, England, UK. May.