Cyril Ruoso / Northern viscacha (Lagidium peruanum) adult and young Cordillera Blanca Massif, Andes, Peru.

Krijn Trimbos / Great crested grebe (Podiceps cristatus) pair in courtship display, The Netherlands. March.

Andy Rouse / Bengal Tiger (Panthera tigris tigris) female 'Noor T39' covering fresh kill with leaves to hide it. Ranthambore National Park, India.

George Sanker / Black bear (ursus americanus) cub standing on hind legs, Yellowstone National Park, USA, June

Andrew Parkinson / Pair of Mallard ducks (Anas platyrhynchos) on a lake in dawn, Derbyshire, UK. April (non-ex)

Anup Shah / Olive baboons (Papio cynocephalus anubis) grooming one another, with baby sitting alongside adults. Masai Mara National Reserve, Kenya. March.

Jack Dykinga / Silhouette of Devils Garden with windows showing between eroded sandstone pinnacles, Grand Staircase - Escalante National Monument, Utah, USA

Tui De Roy / Reticulated Giraffe (Giraffa camelopardalis reticulata) stand together in shrubland. Laikipia, Kenya. September.

Juan Carlos Munoz / Waterfall, Soca river, Soca Valley, Julian Alps, Slovenia, Europe

Hougaard Malan / Stream in dense green forest. Debengeni Falls, Magoebaskloof, Limpopo, South Africa. March 2013. Non-ex.

Floris van Breugel / Metlako Falls along the Eagle Creek Trail in the Columbia River Gorge, Oregon, USA. May 2011.

Alex Mustard / Pair of Sockeye salmon (Oncorhynchus nerka) on their redd in a shallow stream. Female in front of male. Huihil Creek, Adams River, British Colombia, Canada, October.