Ben Hall / 2020VISION / Two people jogging along a path though woodland with the sun shining through trees, Beacon Hill Country Park, The National Forest, Leicestershire, UK, October 2011. Did you know? 8 million trees have...

Terry Whittaker / 2020VISION / Coot (Fulica atra) on nest, with a jogger running past in the background, Regents Park, London, England, UK, May

Terry Whittaker / 2020VISION / Silhouette of Red deer (Cervus elephus) stag in mist, with woman jogger running past in foreground, Richmond Park, London, England, UK, October 2011

Bertie Gregory / 2020VISION / Juvenile Grey heron (Ardea cinerea) walking towards the camera, with a jogger running past in the background, Regent's Park, London, England, UK, July

Ben Hall / 2020VISION / Men jogging along a path through woodland, with logs in the foreground, Beacon Hill Country Park, The National Forest, Leicestershire, UK, October 2011

Ben Hall / 2020VISION / Woman jogging along a path though woodland, with log in the foreground, Beacon Hill Country Park, The National Forest, Leicestershire, UK, October 2011

Terry Whittaker / 2020VISION / Grey Squirrel (Sciurus carolinensis) on tree trunk beside visitors in parkland, woman jogging, Regent's Park, London, UK, February 2011

Ben Hall / 2020VISION / Man with dog jogging down avenue of mature Lime trees leading to Calke Abbey, The National Forest, Derbyshire, UK, November 2010

Laurent Geslin / Flock of Feral pigeons (Columba livia) taking off as jogger approaches, urban street, London, England, UK, October 2008.

Wild Wonders of Europe / Möllers / Two Red deer (Cervus elaphus) stags running away from person jogging, during rut, Klampenborg Dyrehaven, Denmark, October 2008

Paul Hobson / Red deer {Cervus elaphus} male calling in rut, people jogging in background, Bradgate Park, Leicestershire, UK

Terry Whittaker / 2020VISION / Silhouette of Red deer (Cervus elephus) stag in mist, with woman jogger running past in foreground, Richmond Park, London, England, UK, October 2011