David Fleetham / Silhouette of a Green Sea Turtle (Chelonia mydas) passes overhead. West Maui, Hawaii.

Gavin Hellier / Aerial view tracking over Lake Ashinoko and Hakpne Shrine, with Mount Fuji in the distance, passes a galleon sailing on the lake, Fuji-Hakone-Izu National Park, Hakone, Shizuoka, Honshu, JapanNovember...

Niall Benvie / Bealach na Ba Pass, Wester Ross, Scotland, UK, November 2015.

Frederique Olivier / Adelie penguins (Pygoscelis adeliae) in front of French Icebreaker L'Astrolabe, on edge of the fast ice off Dumont D'Urville station, Antarctica. December 2014.

Markus Varesvuo / Black kite (Milvus migrans) flying and red-crowned crane (Grus japonensis) on snow, Hokkaido, Japan, February.

Denis-Huot / Masai giraffes (Giraffa camelopardalis tippelskirchi) silhouetted at sunrise, Masai-Mara game reserve, Kenya.

Michel Roggo / Brown bear (Ursus arctos beringianus) fishing for Sockeye salmon in the Ozernaya River, Kamtchatka, Russia, August

Juan Carlos Munoz / Two Great egrets (Ardea alba) wading, silhouetted at dawn, Keoladeo National Park, Bharatpur, Rajasthan, India.

Roger Powell / Pair of Montagu's harriers (Circus pygargus) undertaking a courtship food pass, Castro Verde, Alentejo, Portugal, April.

Axel Gomille / Zebu cattle (Bos primigenius indicus) holy cow, walking past Sadhu or holy man, Varanasi, India

Andrew Parkinson / 2020VISION / A male (left) and female Ptarmigan (Lagopus mutus) in winter plumage taking flight from an ice field as a skier passes by, Cairngorms National Park, Scotland, UK, March 2011. 2020VISION Exhibition.

Kathryn Jeffs / 'Golden Fleece' (base ship of the BBC film crew) as it passes through floe ice off the Antarctic Peninsula, Antarctica, January 2009, Taken on location for BBC Frozen Planet series