Mark Taylor / RF- Yellow Labrador Retriever puppies, 10 weeks, touching noses. (This image may be licensed either as rights managed or royalty free.)

Peter Cairns / 2020VISION / RF- Mute swan (Cygnus olor) on water in winter dawn mist. Loch Insh, Cairngorms National Park, Highlands, Scotland UK, December. (This image may be licensed either as rights managed or royalty free.)

Alex Mustard / RF- Juvenile Weedy Seadragon (Phyllopteryx taeniolatus) in seagrass habitat. Flinders Jetty, Melbourne, Victoria, Australia, March. (This image may be licensed either as rights managed or royalty fr...

Peter Cairns / 2020VISION / RF- Gannet (Morus bassanus) mutual preening. Bass Rock, Firth of Forth, Scotland, UK, June. (This image may be licensed either as rights managed or royalty free.)

Peter Cairns / 2020VISION / RF- Gannet (Morus bassanus) stalling in flight, Bass Rock, Firth of Forth, Scotland, UK, June. (This image may be licensed either as rights managed or royalty free.)

Peter Cairns / 2020VISION / RF- Gannet in flight (Morus bassanus) against cliff face, Shetland, Scotland, UK, June. (This image may be licensed either as rights managed or royalty free.)

Juergen Freund / RF- Split-level shot of Leatherback sea turtle (Dermochelys coriacea) baby swimming in sea near Warmamedi beach, Bird's Head Peninsula, West Papua, Indonesia, July 2009. Endangered species. (This imag...

Juergen Freund / RF- Newly hatched Leatherback turtle (Dermochelys coriacea) baby moving from the nest towards the sea. Warmamedi beach, Bird's Head Peninsula, West Papua, Indonesia, July 2009. Endangered species. (Th...

Mark Taylor / RF- Brindle-and-white Whippet puppy, 9 weeks. (This image may be licensed either as rights managed or royalty free.)

Mark Taylor / RF- Portrait of Tricolour Dachshund bitch sitting. (This image may be licensed either as rights managed or royalty free.)

Peter Cairns / 2020VISION / RF- Rock ptarmigan (Lagopus mutus) standing on boulder, camouflaged against snow in winter plumage. Cairngorms National Park, Highlands, Scotland, UK, February. (This image may be licensed either as r...

Peter Cairns / RF- Peregrine Falcon (Falco peregrinus) landing on moorland with its wings spread. Scotland, UK, March. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Whooper Swan (Cygnus cygnus) preening wing feathers. The Netherlands. June. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Silhouette of Mute Swan (Cygnus olor) on stream in the Netherlands. June. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Two White Stork (Ciconia ciconia). The Netherlands, April. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- White Stork (Ciconia ciconia) landing. The Netherlands. April. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Silhouettes of two Konik wild horses (Equus ferus caballus). The Netherlands. July. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Seven White-fronted Goose (Anser albifrons) flying in formation. The Netherlands. July. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Siberian Tiger (Panthera tigris altaica) walking in snow. Captive. Endangered species. (This image may be licensed either as rights managed or royalty free.)

Tony Heald / RF- African elephant (Loxodonta africana) female herd approaching waterhole with trunks raised to smell danger, Etosha National Park, Namibia, August. Endangered species. (This image may be licensed e...

Alex Mustard / RF- Male Atlantic grey seal (Halichoerus grypus) swimming over seaweed. Lundy Island, Devon, England, UK, July. (This image may be licensed either as rights managed or royalty free.)

Alex Mustard / RF- Lemon shark silhouette (Negaprion brevirostris). Little Bahama Bank. Bahamas. Tropical West Atlantic Ocean. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- European Robin (Erithacus rubecula) perched on snow covered branches, in garden, Wales, UK. December. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Atlantic puffin (Fratercula arctica) Farne Islands, Northumberland, UK. June. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Arctic tern (Sterna paradisaea) in flight, calling, Farne Islands, Northumberland, UK. June. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Close up of Paper Wasp (Polistes sp.) on nest, Fennessey Ranch, Refugio, Coastal Bend, Texas Coast, USA. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- White Mouth Dayflower (Commelina erecta) detail of stamen, Fennessey Ranch, Refugio, Coastal Bend, Texas, USA. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Common mestra butterfly (Mestra amymone) at rest on flowering Texas bluebonnet (Lupinus texensis), Texas Coast, USA. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Head portrait of Bullfrog (Rana catesbeiana) partially submerged in lake, Fennessey Ranch, Refugio, Coastal Bend, Texas Coast, USA. (This image may be licensed either as rights managed or royalty...

Edwin Giesbers / RF- Opening Mallow-leaved bindweed (Convolvulus althaeoides) flower, Menorca, Balearic Islands, Spain, Europe. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Head portrait of Red squirrel (Sciurus vulgaris) feeding in snow, Austria, Europe. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Common tree frog (Hyla arborea) head portrait, the Netherlands.

Wild Wonders of Europe / Widstrand / RF- White tailed sea eagle (Haliaeetus albicilla) in flight, Flatanger, Norway, June. (This image may be licensed either as rights managed or royalty free.)

Peter Cairns / RF- European grey wolf (Canis lupus) running through snow in birch forest, Tromso, Norway. Captive, April. (This image may be licensed either as rights managed or royalty free.)

Peter Cairns / RF- Common cranes (Grus grus) flying in silhouette against sunset, Hornborga, Vastergotland, Sweden. April. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Cairns / RF- Polar bear (Ursus maritimus) on ice floe, Svalbard, Norway, September 2009. Endangered species. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Great crested grebe (Podiceps cristatus) chick on mother's back, UK. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Red squirrel (Sciurus vulgaris) sitting on moss covered branch, Scotland, UK. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Puffin (Fratercula arctica) carrying Sand eels in beak for young, Fair Isle, Shetland Islands, UK. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Giesbers / RF- Two flowering Globeflowers (Trollius europaeus) Liechtenstein. June.

Andy Rouse / RF- Polar Bear (Ursus maritimus) on pack ice, sniffing the air at sunset, Svalbard, Norway, September 2009. Endangered species. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Blue Tit (Parus caeruleus) in snow, Wales, UK. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Bullfinch (Pyrrhula pyrrhula) male perched, Norway. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Ice cliffs, Svalbard, Norway. February 2009. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Cairns / RF- Red squirrel (Sciurus vulgaris) portrait, in snow, Cairngorms National Park, Scotland, March 2007. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Leopard (Panthera pardus) jumping between rocks, Namibia. Captive animal in the open. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Cheetah (Acinonyx jubatus) running, Kenya. Captive animal running free. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- African lion (Panthera leo) females greeting, Kenya. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Cairns / RF- Solar halo over the Laitaure delta, Sarek National Park, Laponia World Heritage Site, Lapland, Sweden. September 2008. (This image may be licensed either as rights managed or royalty free.)

Ross Hoddinott / RF- Snowdrop (Galanthus nivalis) flower in snow, north Devon, UK. February. (This image may be licensed either as rights managed or royalty free.)

Carol Walker / RF- Mustang wild horse, bay foal running, Pryor Mountains, Montana, USA. (This image may be licensed either as rights managed or royalty free.)

Carol Walker / RF- Horses running in snow, Flitner Ranch, Shell, Wyoming, USA. (This image may be licensed either as rights managed or royalty free.)

Carol Walker / RF- Purebred Grey Andalusian mare looking out over snow, Longmont, Colorado, USA. (This image may be licensed either as rights managed or royalty free.)

Tony Heald / RF- Male Giraffes (Giraffa camelopardalis) sparring or necking, Etosha National Park, Namibia. January. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Roe deer (Capreolus capreolus) buck chasing female during rut, Wiltshire, UK. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Rockhopper penguin (Eudyptes chrysocome chrysocome) portrait, Falkland Islands. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Snowy owl (Bubo scandiaca) taking off from post, Canada. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- African elephant (Loxodonta africana) bull feeding on savanna, Masai Mara, Kenya. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- King penguin (Aptenodytes patagonicus) male and female, courtship posture, Falkland Islands. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Gentoo penguins (Pygoscelis papua) emerging from the sea, Antarctica. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Gentoo penguin (Pygoscelis papua) pair on iceberg, one calling, Antarctica. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- King penguin (Aptenodytes patagonicus) portrait on beach, Falkland Islands. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Ring-tailed lemur (Lemur catta) with tail in the air silhouetted in light, Berenty Reserve, Madagascar, Africa. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Madagascar fruit bat / flying fox (Pteropus rufus) Berenty reserve, Madagascar, Africa. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Widstrand / RF- White-tailed Sea Eagle (Haliaeetus albicilla) turning in flight, Flatanger, Norway, August. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Green-crowned Brilliant hummingbird (Heliodoxa jacula) adult feeding. Mindo, Ecuador, Andes, South America. February. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- American moon / Luna Moth (Actias luna) head portrait with antennae. New Braunfels, Texas, USA. March. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - Gentoo Penguin (Pygoscelis papua) adult with chick, Antarctica. (This image may be licensed either as rights managed or royalty free.)

Ross Hoddinott / RF- Common frog (Rana temporaria) portrait with red background. UK. (This image may be licensed either as rights managed or royalty free.)

Ross Hoddinott / RF- Broad-bodied chaser dragonfly (Libellula depressa) on fern with veins in wings. Cornwall, UK. May. (This image may be licensed either as rights managed or royalty free.)

Ross Hoddinott / RF- Small pearl-bordered fritillary (Boloria selene). Marsland mouth, Cornwall / Devon, UK. (This image may be licensed either as rights managed or royalty free.)

Tony Heald / RF- African Fish Eagle (Haliaeetus vocifer) in flight. Chobe National Park, Botswana. May 2008. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Ghost glass frog (Centrolenella ilex), Costa Rica.

Tony Heald / RF- Long-Billed Vulture (Gyps indicus) juvenile flying. Bandhavgarh National Park, Madhya Pradesh, India. March. Endangered species. (This image may be licensed either as rights managed or royalty fre...

Rolf Nussbaumer / RF- Blister Beetle (Meloidae) adult on Prairie Verbena flower (Verbena bipinnatifida). Texas, USA. April. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Common Tree Frog (Hyla arborea) adult resting in wild rose bush. National Park Lake Neusiedl, Austria. April. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Ferruginous Pygmy Owl (Glaucidium brasilianum) adult at nest hole. Rio Grande Valley, Texas, USA. May (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- American Robin (Turdus migratorius) male preening. Rocky Mountain National Park, Colorado, USA. June. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Familiar Bluet (Enallagma civile) female. Rio Grande Valley, Texas, USA. May. (This image may be licensed either as rights managed or royalty free.)

Doug Perrine / RF- Orca / Killer whale (Orcinus orca) captive, digital composite. (This image may be licensed either as rights managed or royalty free.)