Enrique Lopez-Tapia / Climber on Kala Pattar peak (5545m) with Buddhist prayer flags at sunset. Sagarmatha National Park UNESCO World Heritage Site, Khumbu/Everest Region, Nepal, Himalaya. October 2011. Winner of Mountain...

Pascal Kobeh / Ocan Pacifique - Nouvelle caldonie - Gros plan de la tte d'un nason licorne (Naso brevirostris) de nuit Pacific Ocean - New Caledonia - A close-up of the head of a spotted or longnose unicornfish (Na...

Magnus Lundgren / Wild Wonders of China / Spotted unicornfish (Naso brevirostris) Green Island, a small volcanic island in the Pacific Ocean , Taiwan

David Fleetham / Green sea turtle (Chelonia mydas) followed closely by Spotted unicorn fish (Naso brevirostris) which feeds on turtle feces, Hawaii.

David Fleetham / Kala lolo / Paletail / Spotted Unicornfish (Naso brevirostris). Maui, Hawaii.

Jussi Murtosaari / Great skua (Stercorarius skua) Jokulsarlon, Iceland, June

Jussi Murtosaari / Great Skua (Stercorarius skua) in flight, Langanes, Iceland, June

Jussi Murtosaari / Gannet (Morus bassanus) in flight, Langanes, Iceland, June

Jussi Murtosaari / Gannet (Morus bassanus) colony on coast, Langanes, Iceland, June

Jussi Murtosaari / Harlequin duck (Histrionicus histrionicus) swimming, Myvatn Lake, Iceland, June

Jussi Murtosaari / Harlequin duck (Histrionicus histrionicus) swimming pair, Myvatn Lake, Iceland, June

Jussi Murtosaari / Harlequin duck (Histrionicus histrionicus) at water's edge, Myvatn Lake, Iceland, June

Jussi Murtosaari / Fulmar (Fulmarus glacialis) Husavik, Iceland, June

Jussi Murtosaari / Puffin (Fratercula arctica) in flight, Hornoya, Norway.

Pascal Kobeh / Bluestreak cleaner wrasse (Labroides dimidiatus) cleaning Spotted unicornfish (Naso brevirostris) Palau. Philippine Sea.

Pascal Kobeh / Diagonal-banded / Yellowbanded sweetlips (Plectorhinchus lineatus) cleaning Spotted unicornfish (Naso brevirostris) Palau. Philippine Sea.

Enrique Lopez-Tapia / Buddhist prayer flags in front of Mount Everest shrouded in mist, from Kala Pattar (5545 m). Sagarmatha National Park (World Heritage UNESCO). Khumbu / Everest Region, Nepal, Himalaya, October 2011.

Enrique Lopez-Tapia / Great Rosefinch (Carpodacus rubicilla), male sheltering on rocks at Kala Pattar (5545 m) in the Khumbu valley, Sagarmatha National Park (World Heritage UNESCO). Khumbu / Everest Region, Nepal, Himalay...

Enrique Lopez-Tapia / Prayer flags at Pumori Peak (7145 m) seen from Kala Pattar (5545 m), Sagarmatha National Park (World Heritage UNESCO). Khumbu / Everest Region, Nepal, Himalaya, October 2011.

Enrique Lopez-Tapia / Prayer flags across Changri Shar Glacier from Kala Pattar (5545m), Sagarmatha National Park (World Heritage UNESCO). Khumbu / Everest Region, Nepal, Himalaya, October 2011.

Colin Monteath / Mount Everest at dusk seed from Kala Pattar, Khumbu, Nepal

Colin Monteath / Mount Everest at dusk seed from Kala Pattar, Khumbu, Nepal

Colin Monteath / Southwest face of Mount Everest, Nepal

Colin Monteath / Southwest face of Mount Everest at sunset, Nepal

Colin Monteath / Mount Everest at dusk seed from Kala Pattar, Khumbu, Nepal

Colin Monteath / Mount Everest and Nuptse at sunset from Kala Pattar, Khumbu, Nepal

Colin Monteath / Moon rising over west ridge of Mount Everest, from Kala Pattar, Khumbu, Nepal

Colin Monteath / Southwest face of Mount Everest at sunset, Nepal

Leo & Mandy Dickinson / Himalayas with Mt Everest in background taken from Kala Patar, Nepal

Colin Monteath / Mt Everest (8,850 meters) and Mt Nuptse (7,861 meters) seen from Kala Pattar, Khumbu, Himalaya, Nepal

Colin Monteath / Mt Everest (8,850 meters) and Mt Nuptse (7,861 meters) seen from Kala Pattar, Khumbu, Himalaya, Nepal

Colin Monteath / Mt Nuptse (7,861 meters) seen from Kala Pattar, Khumbu, Himalaya, Nepal

Alex Mustard / Pair of Spotted unicornfish (Naso brevirostris) courtship display above the reef, Ari Atoll, Maldives, Indian Ocean.

Georgette Douwma / Spotted unicornfish (Naso brevirostris) and Blue-spine surgeonfish (Naso unicornis) composite image on black background, Maldives, Indian Ocean.

Georgette Douwma / Surgeonfish composite image on black background, Bluespine surgeonfish (Naso unicornis), Striped surgeonfish (Acanthurus lineatus), Sailffin tang (Zebrasoma veliferum) juvenile, Mimic surgeonfish (Aca...

Jussi Murtosaari / Common crane (Grus grus) male feeding on worms. Joutsa, Finland. April.

Jussi Murtosaari / Common crane (Grus grus) male feeding on worms. Joutsa, Finland. April.

Jussi Murtosaari / Common crane (Grus grus) male feeding on worms. Joutsa, Finland. April.

Jussi Murtosaari / Common crane (Grus grus) male feeding on worms, portrait. Joutsa, Finland. April.

Jussi Murtosaari / Common crane (Grus grus) and Whooper swan (Cygnus cygnus) flocks feeding in field. Joutsa, Finland. April.

Jussi Murtosaari / Peregrine falcon (Falco peregrinus) male perched on rock, Whooper swan (Cygnus cygnus) group grazing in foreground. Kala, Finland. April.

David Fleetham / Pletail unicornfish (Naso brevirostris) juvenile, its horn will continue to grow as it gets older. Fiji Pacific Ocean.

Dave Watts / Tourists visiting the Kala Bhairab shrine in Durbar Square, Kathmandu, Nepal, 2019.