Andy Rouse / Bengal tiger (Panthera tigris) walking past Banyan Ficus sp tree. Ranthambhore National Park, India.

Christophe Courteau / Mountain gorilla (Gorilla beringei beringei), silverback exploring potato crops on farmland adjacent to Volcanoes National Park, Rwanda.

Christophe Courteau / Mountain gorilla (Gorilla beringei beringei) silverback walking through farmland with potato crop to feed on Eucalyptus tree sap. Outside Volcanoes National Park, Rwanda.

Christophe Courteau / Mountain gorilla (Gorilla beringei beringei) silverback sitting amongst Potato crop on farmland next to / outside Volcanoes National Park, Rwanda.

Andy Sands / Broad-fruited cornsalad (Valerianella rimosa) Very rare arable weed, Hertfordshire, England, UK, May

Bruno D'Amicis / Ghost orchid (Epipogium aphyllum) detail in old-growth beech forest. Abruzzo, Lazio and Molise National Park / Parco Nazionale d'Abruzzo, Lazio e Molise UNESCO World Heritage Site Italy. July

Tony Heald / Elephant (Loxodonta africana), male standing on hind legs to reach acacia pods. Cattle egrets (Bubulcus ibis) around elephant's feet. Mana Pools National Park, Zimbabwe.

Tony Heald / Elephant (Loxodonta africana) shaking tree for acacia pods with forest in background. Mana Pools National Park, Zimbabwe. November 2017.

Paul Harcourt Davies / Ghost Orchid (Epipogium aphyllum) very rare and sporadic species growing under beechwood at 1300m, Mt Sirente, near L'Aquila, Abruzzo. Italy. July 2013.

Paul Harcourt Davies / Ghost Orchid (Epipogium aphyllum) Mount Sirente, near L'Aquila, Abruzzo. Italy. July 2013.

Tim Laman / Bornean orangutan (Pongo pygmaeus) male feeding on the figs of a strangler fig tree (Ficus stricta) in lowland rain forest, Gunung Palung National Park, Borneo

Tim Laman / Bornean orangutan (Pongo pygmaeus) female with baby climbing through a strangler fig tree (Ficus stricta), Gunung Palung National Park, Borneo.