Staffan Widstrand / Wild Wonders of China / Saker falcon (Falco cherrug milvipes) in flight, Keke Xili, Changtang, Tibetan Plateau, Qinghai, China

Claudio Contreras / Green Turtle (Chelonia mydas) trapped in fishing net, Sea of Cortez (Gulf of California), Mexico, May, Third Place in the third National Contest 'Visions of our nature' organised by Mexico'...

Tui De Roy / Waved albatross (Phoebastria irrorata) group of three on nest, Punta Suarez, Espanola Island, Galapagos

Tui De Roy / Atlantic yellow-nosed albatross (Thalassarche chlororhynchos). nesting amid Blechnum palmiforme tree ferns. Gough Island, Gough and Inaccessible Islands UNESCO World Heritage Site, South Atlantic.

Tony Heald / African elephant (Loxodonta africana) feeding on grasses, Chobe River, Chobe National Park, Botswana. May.

Bence Mate / African elephant (Loxodonta africana) at waterhole at night, Mkuze, South Africa Third place in the Nature Portfolio category of the World Press Photo Awards 2017.

Bence Mate / African elephant (Loxodonta africana) and Zebra (Equus quagga) at waterhole at night, Mkuze, South Africa Third place in the Nature Portfolio category of the World Press Photo Awards 2017.

Ann & Steve Toon / Elephants (Loxodonta africana) at waterhole drinking at night. One spraying water from trunk, Zimanga Private Game Reserve, KwaZulu-Natal, South Africa.

Danny Green / Three Sea otters (Enhydra lutris) resting on ice, Alaska, June

Nick Garbutt / Male Indri (Indri indri) reaching for leaves / foraging in forest understorey. Mitsinjo Reserve, Andasibe-Mantadia National Park, eastern Madagascar. Endangered.

Andrew Walmsley / Javan slow loris (Nycticebus javanicus), Juvenile temporarily captive to allow measurements to be made. Cipaganti, Garut, Java, Indonesia.

David Fleetham / Underwater encounters with Hawaiian monk seals (Monachus schauinslandi) Hawaii