Christophe Courteau / Mountain gorilla (Gorilla beringei beringei) silverback sitting on boundary wall between Volcanoes National Park and a Potato crop, looking into valley. Area to be restored to forest. Rwanda.

Ernie Janes / Irrigation on potato field, Norfolk, UK, July

Ernie Janes / Potato (Solanum tuberosum) crop irrigation, Norfolk, UK, July 2011

Nigel Cattlin / Potato (Solanum tuberosum) plants, a young organic crop on large flat fenland field. Cambridgeshire, England, UK. June.

Nigel Cattlin / Young potato crop (Solanum tuberosum) on level fenland field. Cambridgeshire, England, UK. June.

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.

Christophe Courteau / Mountain gorilla (Gorilla beringei beringei) juvenile feeding on gum of Eucalyptus within Potato crop. Outside of Volcanoes National Park, Rwanda.

Christophe Courteau / Mountain gorilla (Gorilla beringei beringei) silverback exploring Potato crop, outside Volcanoes National Park, Rwanda.

Christophe Courteau / Potato germinating (Solanum tuberosum)

Will Watson / Colorado potato beetle (Leptinotarsa decemlineata) on Potato (Solanum tuberosum) leaves, Romania.