Andy Rouse / Bengal tiger (Panthera tigris tigris) with tourists watching from cars, Ranthambore, India

Graham Eaton,Graham Eaton / Highland cow next to road above Malham, Yorkshire, winter.

Sandra Bartocha / Vehicle tracks through a field of green barley, Jennyhof, Mecklenburg-Vorpommern, Germany, May

Anup Shah / Tyre tracks across salt plain, Rann of Kutch desert, Gujarat, India

Ashley Cooper / Derwent Water completely frozen over with cycle tracks, Keswick, Lake District, England, UK, December 2010.

Ashley Cooper / Derwent Water completely frozen over with cycle tracks, Keswick, Lake District, England, UK, December 2010.

Ashley Cooper / Truck hauling freshly cut timber for biofuel in Grizedale forest, Lake District, England, UK, May 2013.

Ashley Cooper / A forwarder, a specialist machine for cutting timber for biofuel in Grizedale Forest, Lake District, England, UK

Nick Turner / Farm track through oil seed rape (Brassica napus), Calmsden, Gloucestershire, UK. April 2015.

Zoltan Nagy / Tyre marks of logging vehicles and pile of logs, Calimani National Park, Carpathians, Romania. August 2011

Pascal Tordeux / Tyre tracks in sand on beach as low tide, Crotoy, Somme Bay, Pas de Calais, France, July 2015.

Gary K. Smith / Farm track beside hedgerow, Wiltshire, UK, October 2014.